adj.无姐无妹的
Bernadette gave him a shy, sisterly kiss.
贝尔纳黛特像妹妹一样羞怯地吻了他一下。
She gave him a sisterly kiss.
她像姐姐一样亲了他一下。
We just had a sisterly relationship.
我们只是姐妹般的关系。