Sparetime
a. 业余的
🗣️ 情景例句
Please do the work at your own convenience.
请在方便时把这事做一做。
Oh, really? Where did you go?
哦，真好？去哪儿了？
Yes. Wash your hands with soap at the end of your experiment.
可以。在实验结束时要用肥皂洗手。