| 释义 |
on the alert 英ɒn ðə ə'lɜːt美ɑːn ðə ə'lɜːrt 研短语³⁸⁴³⁸
基本例句
注意; 提防; 警戒; 警惕着; 处于戒备状态
Wherever they went she was evidently always on the watch.很明显，无论他们到什么地方，她时时刻刻都在警惕着。
Knowing that danger threatened, they wereon the alert.因为知道可能会发生危险，他们处于戒备状态。
These networks areon the alertfor warning signs that show the weakening of rock layers that can precede an earthquake.这些网络始终处于戒备状态，搜索地震前岩石可能松动的警告迹象。 |