let
A. vt.让
She doesn’t let her child play with fire.
B.用于祈使句
Let’s go to the Summer Palace, shall we?
Let Peter do the job, will you?
C.习语
let…alone不干涉；听之任之；更不必说
the baby can’t even walk, let alone run.
let…be不干涉；听之任之
let…down使……失望;放下
I won’t let myself down!
let…go释放；松手
Let go of me!
let…in放进来
let…off放（炮、烟花、枪等）
let…out泄漏；放掉（水、气等）；释放
let…pass放过；不追究；宽恕
