drop a (或 the) dime on someone

(informal)inform on someone

(非正式)告發(fā)

get off the dime

(informal)be decisive and show initiative

(非正式)果斷，采取主動

at some point you have to get off the dime and do something.

在適當(dāng)?shù)臅r候，你要果斷地采取行動。

a dime a dozen

Overly abundant; commonplace.

過于豐富的；平凡的

on a dime

At a precise point; within a narrowly defined area

在極小范圍內(nèi)：恰恰在這一點(diǎn)上；在一個狹窄的限定的區(qū)域內(nèi)

a sports car that stops on a dime.

跑車在小范圍內(nèi)行駛