alertness
英 [?'l??tn?s]
美[?'l?tn?s]
- n. 警戒；機敏
中頻詞
詞態(tài)變化
形容詞:?alert;
英文詞源
- alertness (n.)
- 1714, from alert + -ness.
雙語例句
- 1. The drug improved mental alertness.
- 該藥有助于提神。
來自柯林斯例句
- 2. Alertness, calmness, courage : he could see them all in the youngster's face.
- 機警, 鎮(zhèn)定, 膽量,都擺出在這年青人的臉上.
來自子夜部分
- 3. We must maintain a military standard, an alertness, and never vary it.
- 我們必須保持軍隊的準則, 應(yīng)當隨時注意,切勿隨時變動.
來自辭典例句
- 4. The order urged the armed forces to enhance their alertness.
- 該項命令敦促武裝部隊提高警惕.
來自辭典例句
- 5. Ginseng was reported to have increased energy and mental alertness.
- 人參可以增進體力和提高精神敏捷性.
來自辭典例句