He was on guard, watching for illegal immigrants.

Put none but Americans on guard tonight.

今夜只让美国人担任警戒.

How be on guard audit risk, offered a new task to staff of bank audit undoubtedly.

如何防范稽核风险, 无疑对我行稽核人员提出了一个新的课题.

Be on guard against those who try to lie themselves into our confidence.

警惕那些用谎言来骗取我们信任的人.

And right off I was on guard against Mencken's books.

我马上就对门肯的书警觉起来了.

Quite clearly he was standing on guard.

很显然,他在站岗.

They seemed on guard.

他们看来有警惕.

The man below there are always on guard.

下面的人又总是片刻不离地守着.

Face a challenge, we should have corresponding the deala situation measure and be on guard mechanism.

面对挑战, 我们要有相应的对策措施和防范机制.

You should be on guard when a stranger stands in front of your door.

当陌生人站在你家门前时,你应该有所提防.

Also she is no on guard of many things. Before she is quite silly, very lovely.

而且她现在对很多东西的戒备心很强,不像以前傻傻的, 很可爱.

The soldiers are on guard.

战士们在站岗.

The rooms were cruelly dismal with their walls on guard like policemen.

教室里,四面墙壁像警察一样看守着我们,特别地沉闷.

Two soldiers are on guard gate.

两名战士在门口站岗.

The iron gate was closed fast and four policemen stood on guard.

铁门是关得紧紧的了,两对警察是门岗.

The sentry is on guard.

那哨兵在担任警戒.

Against that dreadful design the Church stands ever on guard.

对于这个可怕的计谋,教会是时刻提防的.

Everyone must be on guard against scams , but seniors can sometimes be vulnerable to fraud.

每个人都应该对诈骗提高警觉 ﹐ 但是老年人有时候特别容易上当受骗.

Test results-and therefore tests-are not required unless the company has them on hand.

检验结果并不要求必须上交,如果公司有准备好的也可以上交.

Please be on hand at 12 sharp.

请在十二点整到这里来.

He should be on hand to direct operations personally.

他应该亲自到场指挥.