早知文理百科

三的英文单词是three. 例句 Three runners sprinted past. 三名运动员飞跑了过去。 Three boys were playing marbles. 三个男孩儿在玩弹子游戏。 Three fi...

were playing 是过去进行时,一般来说需要有一个明确的过去的时间点或时间段才用这个时态。 例句 Three boys were playing marbles. 三个男孩儿在玩弹子游戏...