他俯首向老师请教问题。
tā fǔshǒu xiàng lǎoshī qǐngjiào wèntí 。
He bowed his head to ask the teacher a question.
在会议上，他俯首思考了很久。
zài huìyì shàng ， tā fǔshǒu sīkǎo le hěnjiǔ 。
In the meeting, he bowed his head and thought for a long time.
听到这个消息，她忍不住俯首哭泣。
tīngdào zhègè xiāoxī ， tā rěnbùzhù fǔshǒu kūqì 。
Upon hearing the news, she couldn't help but bow her head and cry.