灵机一动

tā líng jī yī dòng xiǎng chū gè hǎo bàn fǎ

她灵机一动，想出个好办法。

She had a brainwave and found a good solution.

wǒ tū rán líng jī yī dòng yǒu le xīn de jì huà

我突然灵机一动，有了新的计划。

I had a sudden inspiration for a new plan.

tā líng jī yī dòng wèi zì jǐ de xīn xiǎo shuō zhǎo le yī gè lǐ xiǎng de shū míng

她灵机一动，为自己的新小说找了一个理想的书名。

She hit upon a perfect title for her new novel.