He was still just a boy.

他还只是个男孩。

《柯林斯英汉双解大词典》

Back then Daniel was just a boy with deep love for surfing.

那时，丹尼尔还只是一个对冲浪有着深深热爱的男孩。

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Wendy: You're just a boy.

你只是一个男孩儿。

youdao

When you were a young boy, you would've studied just reading and writing Homer.

希腊男子在幼年时，要学习阅读书写荷马史诗。

耶鲁公开课 - 新约课程节选

The die was cast for Kinmonth as a polymath when he was just a boy.

WSJ: The Ecstasy of Influence | Innovator of the Year 2012 Design

Not a man, either, just a boy of eighteen or twenty, fairly thickset and not at all feminine.

NEWYORKER: The Cold Outside

But his heart was always in Israel, the historic homeland of the Jewish people. (Applause.) And when he was just a boy he made his journey across land and sea -- toward home.

WHITEHOUSE: President Obama at 2012 AIPAC Policy Conference