alert

第三人称单数：

动词第三人称单数: alerts

更多词形：

动词过去式: alerted | 动词过去分词: alerted | 动词现在分词: alerting | 动词第三人称单数: alerts |

单词例句：

The garrison was alert, but too few.

驻防的军队是保持警惕的，但是人数毕竟太少了。

We should be alert to cultural imperialism.

我们应当警惕文化扩张。

Keep on the alert; we're due for an inspection.

提防着点，轮到检查我们了。

Suddenly the combat alert sounded.

突然战斗警报响了。

Troops are on the alert against any possible aggression.

军队戒备着可能的来犯。

Although he's over eighty his mind is still remarkably alert.

他虽已年过八十，但头脑仍然十分机敏。

One should not run about aimlessly during an alert.

空袭警报期间不可到处乱跑。

A hotel alert rated everything in the book.

饭店报警按规定是重于一切的。

We must be alert to the possibility of danger.

我们必须认识到危险的可能性。