相关单词同义词alarm, warn, vigilant, precautious, guard, vigilance, 近义词adj. active, aware, bright, careful, quick, watchful v. alarm, notify n. warning, siren反义词adj.careless, inactive, slow, unaware临近词alex, alec, Alerto, Alerta, alertor, alerter, alertly, alert to, alerting, AlertPay, alert log, alertness相似词alderman, Alderney, ale, Aleppo, alfalfa, algae, algebra, Algeria, 返回 alert