我们昨天在公园里玩得很开心。

We were having a great time in the park yesterday.

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We were having a great time in the park yesterday.

were 是 be 动词的过去式复数形式,在这里与现在分词 having 构成过去进行时,表示过去某个时间正在进行的动作。

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在 App 中学习