英语单词
alertness是什么意思
alertness
美[ə'lɜ:tnəs]
- n.警戒，机敏；戒心 网络解释.警觉状态；警惕性；予求；清醒
双语例句
- 1 . The drug improved mental alertness .
- 该药有助于提神。
来自柯林斯例句
- 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