We must obey the traffic rules.

我们必须遵守交通规则。

youdao

We must obey the traffic rules!

我们必须遵守交通法规！

youdao

First, we must obey the traffic rules.

首先，我们必须遵守交通法规。

youdao

First, we must obey the traffic rules.

首先，我们必须遵守交通法规。

youdao