ground alert
英
美
- n. 戒备状态;进入戒备状态之信号
ground alert的用法和样例:
例句
用作名词 (n.)
- They have put the army on the alert.
他们已使军队进入戒备状态。 - These networks are on the alert for 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。
ground alert的相关资料:
临近单词
groundmass
ground
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