upon one's guard
严阵以待,慎重其事,戒备心强,严防死守
Synonyms & Antonyms
as inon one's guard
Synonyms
alert警惕,提醒,警报,警觉careful仔细,谨慎,认真,细心cautious谨慎的,慎重,慎重的,谨慎defensive防御性,防御性的,防卫性,防守性guarded受保护的,有防备的,有防备,受保护heedful慎重的,慎重,谨慎的,审慎的mindful铭记于心的,介意的,铭记在心的,铭记于心observant观察者,观察家,善于观察的人,观察家们on guard警惕,守护,警卫,守护着on one's toes脚踏实地,脚踏实地地,脚踏两只船,脚踩两只船on the lookout观望中,观望,正在寻找,监视on the watch观察中,监视中,观察中的,观察时vigilant警惕,警惕性强,警惕的,警惕性watchful小心翼翼,谨慎的,警惕的,警惕
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