查单词 · 学外语

精品英语词典

首页alertnessalertness英英释意

alertness

英 [ə'lɜːtnəs] 美[ə'lɝtnɪs]

英英释义考试真题实用场景例句

n. 警戒；机敏

英英释意

1. the process of paying close and continuous attention

2. a state of readiness to respond;: "alerting was indicated by the desynchronization of the EEG"

3. lively attentiveness