change gear的用法和樣例：
例句
- Should change gear the engine's starting to labour.
你該換擋了－－發(fā)動(dòng)機有些吃不住勁了。 - How do you tell when to change gear?
你怎麼確定何時(shí)換擋? - You should change gear the engine's starting to labour.
你該換擋了--發(fā)動(dòng)機有些吃不住勁了。 - Move this lever to change gear.
換檔時(shí)扳動(dòng)這根操縱桿。
