相关单词同义词guard, vigilance, 近义词 chariness 谨慎, brain 脑, watchfulness 警觉性, vigilance 警戒, attentiveness 注意, awareness 认识, preparedness 准备(尤指充实军备）..., readiness 准备就绪, on the qui vive 警戒着, 时时提防着..., sharp-sightedness sharp-sighte..., alerting 发信号, wakefulness 觉醒临近词alert, alert performance, alert-only pager, Alert sb to do sth, alerts correlation, alert pickup truck, Alert for Aircraft, alerts aggregation, Alert Launch Order, alerting nystagmus, alert verification 返回 alertness