alertness是什么意思？alertness怎么读？alertness例句及用法

1 . The drug improved mental alertness .

该药有助于提神。

2 . Alertness, calmness, courage : he could see them all in the youngster's face.

机警, 镇定, 胆量,都摆出在这年青人的脸上.

来自子夜部分

3 . We must maintain a military standard, an alertness, and never vary it.

我们必须保持军队的准则, 应当随时注意,切勿随时变动.

来自辞典例句

4 . The order urged the armed forces to enhance their alertness .

该项命令敦促武装部队提高警惕.

来自辞典例句

5 . Ginseng was reported to have increased energy and mental alertness .

人参可以增进体力和提高精神敏捷性.

来自辞典例句

alertness相关短语搭配

1 . 通知和通知

Add , change , or delete alerts and alert results ., 添加 , 更改或删除通知和通知结果.

1 . 通知和通知结果

Add , change , or delete alerts and alert results ., 添加 , 更改或删除通知和通知结果.

1 . 安珀警戒

“安珀警戒”（AMBER Alert）是当美国确认发生儿童绑架案时，通过各种媒体向社会大众传播的一种警戒告知，它是以一名于1996年在美国德州阿灵顿被绑架并杀害的.

1 . 删除通知和通知

Add , change , or delete alerts and alert results ., 添加 , 更改或删除通知和通知结果.