have done 現(xiàn)在完成時(shí)表過去發(fā)生的動(dòng)作并且其本身或影響持續(xù)到現(xiàn)在并可能持續(xù)到將來
took/heard 是一般過去時(shí),表示動(dòng)作在過去的某個(gè)時(shí)間點(diǎn)上發(fā)生,沒有包含持續(xù)的意義
It has taken several months to get there為什么不直接說It took?
It has taken several months to get there為什么不直接說It took?
I heard they have gone to Shanghai on business 為什么前面不說I have heard?
I heard they have gone to Shanghai on business 為什么前面不說I have heard?
英語(yǔ)人氣：205 ℃時(shí)間：2020-03-24 04:49:08
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