It's sometimes difficult to predict these quantities precisely, especially when the attack isn't practical to actually implement for testing.

On Dietrich's role, he characterized, " It's difficult to reconcile Miss Dietrich's Frenchy, the cabaret girl of the Bloody Gulch Saloon, with the posed and posturing Dietrich we last saw in Mr. Lubitsch's ' Angel '.

It's more difficult to say the same about rods from two different companies, since they could be made from material from completely different manufacturers.

It's very difficult for me to watch it now, but I'd like to see it in a year's time just to see how it stands up.

At a Soviet Politburo meeting, Gorbachev said, " It's difficult to build a new building out of old material [...] I hope to God that we haven't made a mistake with Najibullah.

The performance featured tunes by Dion and the Belmonts and The Four Freshmen (" It's a Blue World "), the latter of which proved difficult for the ensemble to carry off.

" It's difficult, he insists, to create a game that appeals to both males and females on an equal level.

It's not a difficult walk and is supported by a chairlift all-year round.

It's difficult to tell when the naginata itself first appeared.

It's very difficult for him to get around anything that isn't ABC.

It's not that difficult to overcome these seemingly ghastly problems ... what's hard is to decide to actually do it.

It's really difficult when you spend so much time apart.

It's not difficult to make composite switches fault-tolerant.

It's difficult to compile a definitive list of every character that appeared in Pogo over the strip's 27 years, but the best estimates put the total cast at well over 1, 000.

On the way those two worlds interacted, Willcox's commented: " It's difficult to compare the two worlds and say why you're doing both.

It's a very difficult thing to explain.

It's one thing to experience that as a child, but when you have to as an adult, it has a way to remind you how difficult things can be.

I was not able to alter the appearance of the interior or exterior in any way ... It's a very difficult building in which to make art look more important than the space in which you put the art ".

' It's very difficult, seeing your mother, going through her emotional problems and drinking and then behaving in that manner ...

Visibility was reduced to a few yards (" It's like you were blind ", commented one observer ), making driving difficult or impossible.

It's protocol is more difficult to identify than that of other popular P2P programs.

* It's difficult to see the picture when you're inside the frame.

It's also noticed that young Blythe reads the plaque without stumbling over the difficult words, while his father as a young boy had had trouble reading it, showing that young Blythe's father had taught his son what Hundert had taught him.

Also Agnetha Fältskog has stated in a TV-programme: " It's often difficult to know what will be a hit.

It's considered one of the most difficult ultramarathon races due to the weather conditions encountered by the runners ( heat and humidity during the day and cold during the night hours ) and the non-stop profile of the race.

Relating specifically to ambient music, Morris stated " It's exactly what you need if you have a busy and stressful life ".

It's not exactly clear when Kassite rule of Babylon began, but the Hittites from Asia Minor did not remain long after the sacking of the city, and it is likely the Kassites moved in soon afterwards.

It's not clear exactly how closely related he was to Calvert.

It's now exactly three years later, the war still rages on, and Blacky is in town to celebrate his son's birthday at a local communist hangout.

It's very hard for me to tell exactly how I feel.

It's not exactly a sequel, and it's certainly not a remake.

It's unclear even today exactly who this effort was intended to impress — foreign air forces or Germany's public-but it seems to have been a successful deception.

When asked on television by Kitty Carlisle Hart and Charles Nelson Reilly how she began the opera aspect of her career she said, " It's so hard to determine exactly when I began or why, singing.

It's one of the few items that was built exactly as designed in the original version of the plans for the Cathedral.

An aged Frik finds him, mentioning, " It's not exactly as I remember ," to which Merlin replies, " They like it better this way.

It's actually unknown which formation Zhuge exactly used, but it must be a grand one because the highest-ranked officials who participated in the defense of Minzhu all took role in the formation.

( It's exactly equivalent because franking is fully refundable, as described above.

On the challenges of writing a novel in a child's voice, Foer responded, " It's not the voice of a child exactly ," adding that " in order to create this thing that feels most real, it's usually not by actually giving the most accurate presentation of it.

Lister settles down with a woman who looks exactly like Kristine Kochanski in Bedford Falls, which looks exactly like the Bedford Falls in Frank Capra's It's a Wonderful Life, Lister's favourite movie.

It's exactly the sort of state that could see her do something very stupid indeed.

The authors of the book I Can't Believe It's a Bigger and Better Updated Unofficial Simpsons Guide, Warren Martyn and Adrian Wood, wrote that although it is " inevitable " that Homer's car will be a disaster, the " joy of this episode is anticipating exactly what sort of disaster.

It's at exactly this time and geographical area that the first use of the term " violoncello " comes into use, that what we now consider a ' standard ' cello tuning ( ADGC ) becomes the norm, that a solo repertoire for the ' cello starts to appear, and that the ' cello starts to replace the G or A violone as the preferred bowed continuo instrument ( see the excellent articles by Stephen Bonta for more detailed information ).

It's not known exactly where it is because the location changes every year.

According to the Season 3 episode " It's a Black President, Huey Freeman ", " Nobody knows exactly how old Robert Freeman is-not even himself.

It's not clear exactly where the various Indo-Chinese forms of kickboxing originated but they are known to share a common ancestry having been based on Chinese techniques with some influence from the Indian martial arts.

" José Miguel Vivanco, the Americas director of Human Rights Watch, was quoted as saying " It's really hard to understand what exactly the political opposition leadership has in mind.