boyishly

/ˈbɔɪɪʃli/ 8
in a manner that is of or like a boy in looks, behaviour, or character, esp when regarded as attractive or endearing.

adverb [方式副词]稚气地;少年地

John grinned boyishly.
约翰孩子气地咧嘴一笑。

单词造句: