请随便拿一条干净毛巾用。

Help yourself to a clean towel.

youdao

如果有顽固污渍的地方需要清理，你可以用块湿抹布擦干净。

If there are more tenacious spots to clean off, you can use a wet rag to rub them clean.

youdao

用清水冲洗干净，并加一点点护发素。

Rinse it with water and add a smidgen of conditioner.

youdao

They then use the toilet to clean the flag.

然后他们就用马桶来弄干净国旗。

耶鲁公开课 - 心理学导论课程节选