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介词：on in at d等等可表时间、地点、方向等副词：then there here down what(疑问副词)等等 详：1) 时间和频度副词: now,then,often,always,usually,early,today, lately, next,lastday,already,generally,frequently, seldom,ever,never,yet,soon,too, immediately, hardly,finally,shortly, before, ago,sometimes, yesterday. 2) 地点副词: here, there, everywhere, an... |
