ground alert的用法和樣例：
例句
用作名詞 (n.)
- They have put the army on the alert.
他們已使軍隊進(jìn)入戒備狀態(tài)。 - These networks are on the alert for warning signs that show the weakening of rock layers that can precede an earthquake.
這些網(wǎng)絡(luò )始終處于戒備狀態(tài)，搜索地震前巖石可能松動(dòng)的警告跡象。
ground alert的相關(guān)資料：
臨近單詞
groundmass
ground
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Ground Communications Tracking System
Ground-Based Hypervelocity Rail Gun
groundwater remediation system design
Ground Standoff Mine Detection System
Ground Aviation Radio Exchange System
Ground Support Equipment-Test Stand
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Ground-Control Interface Logic Unit
Ground Support Equipment Illustration
