stepbrother

n.

（继母与其前夫或继父与其前妻所生的）哥哥，弟弟；

复数：stepbrothers

1. I've suddenly acquired a stepbrother.
   我突然有了一个继兄弟。
2. Your new stepbrother told me about your problem at school.
   你的新继兄告诉了我你在学校的问题。
3. Gretchen and her stepbrother, Clark, hate staying at their grandparents' house.
   格雷琴和她的异父兄弟，克拉克，憎恨待在他们祖父或祖母的房子。

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