the thought crosses sb's mind

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If the thought of (doing) something crosses someone's mind, they think about it for a short time.

(某人的)头脑中闪过…念头

The thought had crossed my mind that I might need some help with the project.

我脑中曾闪过这样的念头，关于这个项目我可能需要帮助。

You’re at the movies and a worrisome thought crosses your mind. Did I check whether the documents were sent tonight to my client?

你正在看电影，而一丝担心划过你的脑海：我检查过今晚是否给客户寄文件了吗?