in gear

with a gear engaged

齒輪連上，已嚙合

the captain revved the engines and put them in gear.

機(jī)長(zhǎng)加快發(fā)動(dòng)機(jī)轉(zhuǎn)速，使其進(jìn)入工作狀態(tài)。

I've got to get my act in gear.

我得采取行動(dòng)了。

move up a gear

change to a higher gear

換擋提速

out of gear

with no gear engaged

齒輪脫開(kāi)，不嚙合

she took the engine out of gear.

她將引擎停下。

sometimes his brain seems to slip out of gear.

有時(shí)候，他的腦袋好像不聽(tīng)使喚了。

gear down (或 up)

change to a lower (or higher) gear

換低速（或高速）擋

gear someone for

make ready or prepared

使（某人）做好準(zhǔn)備

a nation geared for war.

全國(guó)已經(jīng)進(jìn)入備戰(zhàn)狀態(tài)。

gear something to/towards

adjust or adapt something to make it suitable for (someone or something)

（為適應(yīng)某人或某事）對(duì)（某物）進(jìn)行調(diào)整（或改造）

gear someone/thing up

equip someone or something for a particular purpose

（為特定目的）裝備（某人，某物）

a city not &B{geared up to} an outdoor lifestyle.

一個(gè)還沒(méi)有為戶外生活方式做好準(zhǔn)備的城市。

gear up

To get ready for a coming action or event

為…準(zhǔn)備好：為一將要發(fā)生的行動(dòng)或事件做好準(zhǔn)備

a group of investors who had geared up for the takeover fight.

已經(jīng)為兼并做好準(zhǔn)備的一群投資人