词汇“keep alert”的中英文读音、翻译、用法及例句

词汇	keep alert
释义	请查阅词条：stay alert
随便看	backward backward wave backward wave amplifier backward-wave backward scatterance backwardization (BK) backward jet backwards compatibility backward scattered electron back-up spring backward acting backward wave in traffic flow backward wavefront backward jump backwards-compatibility backward LAN channel backward lavabo backup space flight crew backward-wave converter backwards compliment backward elimination backup station backward-acting decoder backward-wave magnetron backward wave magnetron