The surveyor came round yesterday and couldn't find the cause of the crack, he asked me if anybody had kicked or tried to force the door.

房屋的检测员昨天也来过，可也说不清为什么房子会裂的。他问我有没有人踢过门或者是想破门而入之类的。

youdao

The larger the key, the greater the possible number of values and the harder it is to crack using brute force techniques.

密钥越大，可能值的数量就越大，使用蛮力技术破解它就越难。

youdao

What is more, Kabul’s crack anti-terrorism unit is at last becoming a force to be reckoned with.

还有，喀布尔残缺不全的反恐队伍总算能够被认为算得上是一支力量了。

youdao

Armor Holdings, for example, subcontracts its business in Russia (protecting multinationals such as Philip Morris, a food and tobacco company) to a local security company formed by veterans of the Alpha commando force, one of the Kremlin's crack military units before its disbandment.

ECONOMIST: Corporate security

Foreigners have been a particularly notable force in rebounding Florida, where 26 ZIP codes crack our list.

FORBES: Manhattan's Now Home To America's Most Expensive Zip Code

Debates have raged as to whether the drop in the city's crime is due to more accountability within the police force, improved economic conditions, or addressing their crack cocaine problem.

BBC: Will crime maps work?