1 during 表示“在……期間”,強調在某段時間內發(fā)生了什么。
These animals never go out of the hole during the whole winter. 在整個冬天,這些動物從不出洞。
I read two English novels during the holidays. 我在假期里讀了2部英語小說。
2 for 后跟的詞表示一段有長度的時間,表示某事持續(xù)多長時間。for短語 常用于完成時中,也可用于過去時。
I haven't written her for over a year. 我一年多沒給她寫信了。
Their discussion lasted for three hours. 他們的討論持續(xù)了3個小時。(for可省去)
3 through 本意是“通過,穿過”,表示“自始至終”。
She slept all through the day. 她睡了整整一天。