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1·I have a bowing acquaintance with German literature.

我对德国文学略知一二。

2·I just had a bowing acquaintance with German literature.

我对德国文学略有所知。

3·I don't really know what Tom's mother is like, she is only a bowing acquaintance of mine.

我实际上并不知道汤姆的母亲是个怎样的人，我跟她只有点头之交。

4·I have only a bowing [nodding] acquaintance with him.

我和他只有点头之交。《新英汉大辞典》

5·Delighted to make your acquaintance, Miss Scott, The young man, raising his hat and bowing.

这个年轻人扬起帽子，弯腰，说到“很高兴认识你，斯科特小姐。”