那时候我们还年轻，经常一起去海边玩。
We were young then and often went to the beach together.
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then英 /ðen/|美 /ðɛn/
解释
then 是副词，意思是"那时、当时"，指代过去某个特定的时间点。
We were young then and often went to the beach together.
then 是副词，意思是"那时、当时"，指代过去某个特定的时间点。
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