He was showing off, as is the way with adolescent boys.

他在炫耀，青春期的男孩都是这个样子。

《牛津词典》

This old man is wild with adolescent bravado, A leashed brown dog in the left hand, And an eagle perched on the right.

我虽年老却兴起少年打猎的热狂，左手牵着犬黄，右手举起鹰苍。

youdao

Steve locked his gaze on miss white with adolescent adoration as she began to go over the test results for the seventh grade.

她宣布七年级测验结果的时候，史蒂夫用那种青春期特有的崇敬盯着怀特小姐。

youdao

Other doctors simply don't want to broach the subject of sex with their adolescent female patients, he said.

CNN: STDs still on the rise, report says

Resolutely and with surprising agility, the writer with the adolescent air sprang to his feet and rushed out into the street.

NEWYORKER: The Insufferable Gaucho

She even texts with her adolescent patients.

WSJ: When Email Is Part of the Doctor's Treatment