Please remember the traffic rules!

请记住交通规则！

Drivers usually obey traffic rules.

司机通常遵守交通规则。

We should follow the traffic rules.

我们应该遵循交通规则。

She should have observed the traffic rules.

她本应该遵守交通规则。

All citizens, old or young, man or woman, should keep the traffic rules.

所有的公民，无论老少，无论男女，都应该遵守交通规则。