1.tip-off 密報，警告

The man was arrested after an anonymous tip-off.

有人匿名舉報后，那個人被抓了起來UgR,Jm&VQl。

2.AWOL 擅離職守(absent without leave)

The guitarist went AWOL in the middle of the recording.

錄音錄到一半吉他手溜走了(]Y|oC)]v*XCn+d+E。

3.fail-safe 自動防故障裝置

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

我的小女兒剛上牛津大學，在上一代，這是獲得好工作的保險護照%IR1gPJCBl0X_,OR-+0#。

4.err on the side of caution 寧求穩妥，不愿涉險

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

如果消費者和企業不能確信他們的信息是否安全，他們寧可安全行事FRI;-Ca(;8SFYTWujf。