alertness例句
2024年06月30日 20:57:58
The drug improved mental
alertness.
该药有助于提神。
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.
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.