短語詞組短語heightened alertness 高度警惕keep alertness 保持警覺over alertness 過度警覺alertness value 警戒值class alertness 堦級意識data alertness 數(shù)據(jù)籌備wood alertness 備木Alertness zone 警戒帶above alertness 超前意識 返回 alertness