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......的时候在做.........be
about
to
do
when当........的时候准备要做............
just
done表示刚做完.......紧接着就发生了........were/was
doing.....when当......的时候在做.........be
about
to
do
when当........的时候准备要做............
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