vigilance

His vigilance never languished.

松懈下来。

Constant vigilance is necessary in order to avoid accidents.

经常戒是避免意外事故所必需。

Never relax your vigilance while you live in peace.

你们要居安思危。

We shouldn't relax our vigilance at any time.

任何时候我们都不应该放松惕。

The birds cannot afford to relax their vigilance against predators.

鸟儿不敢放松对捕食者戒。

Guaranteeing the safety of students requires continued vigilance on the part of teachers.

要确保学生安全，教师得时常保持惕。

Better have no war for a thousand days than slacken your vigilance for one day.

宁可千日不战,不可一日不备。