| 英语单词 | alertness |
|---|---|
| 英美音标 | 英 [ə'lɜːtnəs] 美 [ə'lɜːtnəs] |
| 中文释义 | n.警戒；机敏 |
| 英语例句 | (1) The other half of the brain stays awake at a low level of alertness. (2) They also increase alertness and energy. (3) Without Alertness I'll be stupid. |
| 中文例句 | (1) 另一半大脑在低水平警戒状态下保持清醒。 (2) 它们也能提高机敏性和精力。 (3) 没有机敏那是愚蠢。 |
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