1.tip-off 密报，警告

The man was arrested after an anonymous tip-off.

有人匿名举报后，那个人被抓了起来,5s+dvCv.@|haKfoaB。

2.AWOL 擅离职守(absent without leave)

The guitarist went AWOL in the middle of the recording.

录音录到一半吉他手溜走了aOW]Y*aQz*Ng^。

3.fail-safe 自动防故障装置

My younger daughter has just got a place at Oxford which, a generation ago, was a fail-safe passport to a decent job.

我的小女儿刚上牛津大学，在上一代，这是获得好工作的保险护照IZ^+hg+.daaXpz*!Z。

4.err on the side of caution 宁求稳妥，不愿涉险

If consumers and companies cannot be sure that their information is safe, they will err on the side of caution.

如果消费者和企业不能确信他们的信息是否安全，他们宁可安全行事vB)ap1~Y*t=S2Dy&xP4q。