所以我们才有打卡制度。

That's why we have a clock-in system.

youdao

比如，我们用打卡制度来培养学生的时间观念。

For instance, we use to hit the card system to raise student's time idea.

youdao

比如，我们用打卡制度来培养学生的时间观念。

For instance, we use to hit the card system to raise student's time idea.

youdao