"a boyish grin"; "schoolboyish pranks"
同义词: boylike schoolboyish
以上来源于: WordNet
ADJ If you describe a man as boyish, you mean that he is like a boy in his appearance or behaviour, and you find this characteristic quite attractive. 男孩子气的 [表赞许]
She was relieved to see his face light up with a boyish grin.
看到他脸上显出孩子气的笑容,她松了一口气。
boyishly ADV 男孩子气地
John grinned boyishly.
约翰孩子气地咧嘴一笑。
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