趁便

nǐ dào jiā shí néng chèn biàn gěi wǒ shāo gè kǒu xìn ma

你到家时能趁便给我捎个口信吗？

Would you please deliver a message for me when you arrive home?

nǐ néng chèn biàn gěi wǒ dài gè kǒu zhào ma

你能趁便给我带个口罩吗？

Can you bring me a mask by the way?

qǐng bǎ shū chèn biàn gěi tā dài qu

请把书趁便给他带去。

Please take the book over to him when it is convenient.

chèn biàn qù kàn kan péng you

趁便去看看朋友

visit friends at a convenient time

wǒ zài huí jiā de lù shang chèn biàn qù tā jiā kàn le kàn

我在回家的路上趁便去他家看了看。

I dropped in on him on my way home.

wǒ men jìn chéng de shí hou chèn biàn kàn le chǎng diàn yǐng

我们进城的时候趁便看了场电影。

We took the opportunity to take in a film when we were in town.

nǐ huí qù de shí hou néng bù néng chèn biàn gěi wǒ dài gè zǎo cān

你回去的时候，能不能趁便给我带个早餐？

Can you bring me breakfast by the way when you go back?