had juest done..when , were/was doing..when, be about to do ..when 啥意思啊

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had just done表示刚做完.......紧接着就发生了........were/was doing.....when当......的厅闭时候在稿伏桥做.........be about to do when当键猛........的时候准备要做............

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have just done...when...表示刚做完什么紧接着就出现了某某情况，比方说---我刚锁上门，天就开始下雨了。同类型的还有no sooner has sth happened than...;至于be going to..when...这一类的就是指在即将做某事前出现某某情况，比方说---我正要烂埋锁门呢，天开始弊历纳下雨了租没。

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意思是某人或某物刚刚做完了某事在什么什么的时候

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