螺丝钉要经常保养和清洗，才不会生锈。人的思想也是这样，要经常检查，才不会出毛病。

Screws to regular maintenance and cleaning, does not rust. People's thinking, too, to check, will not go wrong.

youdao

螺丝钉要经常保养和清洗，才不会生锈。人的思想也是这样，要经常检查，才不会出毛病。

Screws to regular maintenance and cleaning, does not rust. People's thinking, too, to check, will not go wrong.

youdao