他昨天很忙，所以没来参加聚会。
He was busy yesterday, so he didn't come to the party.
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was英 /wɒz/|美 /wɑz/
解释
was 是 be 动词的过去式，表示"是"或"处于某种状态"。
在这里 was busy 表示"当时处于忙碌的状态"，用于描述过去某个时间点的状态。
He was busy yesterday, so he didn't come to the party.
was 是 be 动词的过去式，表示"是"或"处于某种状态"。 在这里 was busy 表示"当时处于忙碌的状态"，用于描述过去某个时间点的状态。