牢记安全第一。

Remember safety first.

在工地工作时，我们必须牢记安全第一。

When working on a construction site, we must remember safety first.

学校组织的活动中，老师总是强调安全第一。

During school activities, teachers always emphasize safety first.

驾车时，请务必遵守交通规则，安全第一。

When driving, please follow traffic rules and remember safety first.

进行户外探险时，团队成员都知道安全第一。

During outdoor adventures, team members all know to put safety first.

在实验室里，学生们被告知要时刻注意安全第一。

In the laboratory, students are told to always keep safety first in mind.

贝思：是啊，安全第一。

Beth : Yes, safety first.

安全第一确是他的真名.

Safety First was his real name.

安全第一, 预防为主.

Safety first, precaution crucial.

安全第一，保质保量。

Safety first, quantity and quality guaranteed.