Alertness
[ [ə'lə:tnis] ]
出国 Abroad
n. 警戒, 机敏
✅ 同义词
📖 牛津释义
alertness
n [U].
🗣️ 情景例句
I need to get out more.
我需要多出门去。
Between two stools one goes the ground.
脚踩两只船，早晚要落水。
One morning the tiger was very, very hungry.
一天早上老虎饿极了。