a small animal like a mouse with wings that flies around at night

蝙蝠

be at bat, to be the person who is trying to hit the ball in a game of BASEBALL

〔棒球比赛中〕轮到击球

do sth off your own bat, [BrE informal] to do something without being told to do it

主动地做某事，自觉地做某事:

She went to see a solicitor off her own bat.

她主动去找了律师。

do sth right off the bat, [AmE informal] to do something immediately

立刻去做某事:

He said yes right off the bat.

他当即就答应了。

like a bat out of hell, [informal] very fast

极快地，飞快地:

I drove like a bat out of hell to the hospital.

我飞快地开车赶往医院。

old bat, [spoken] an unpleasant old woman

老家伙，老太婆

[I,T] to hit the ball with a bat in CRICKET or BASEBALL

〔板球或棒球运动〕用球板（棒）击（球）

not bat an eye / eyelid, [informal] to not seem to be shocked, surprised, or embarrassed

眼睛/眼皮都不眨一下; 泰然不动，面不改色:

They started talking about sex, but she didn't bat an eyelid.

他们说起了男女之间的事，可她若无其事，连眼睛都不眨一下。

bat your eyes / eyelashes, if a woman bats her eyes, she opens and closes them several times quickly in order to look attractive to men

〔女人〕扑闪眼睛，挤眉弄眼〔以吸引男人〕

go to bat for sb, [AmE informal] to help and support someone

帮助某人，为某人出力

be batting a thousand, [AmE informal] to be very successful

很有成就:

She's been batting a thousand since she got that job.

她得到那份工作以后，一直一帆风顺。