| 释义 |
DEFINITIVE EXAMPLES 权威例句〔job〕Paying close attention; on the alert.留心着;警惕着美国传统〔watch〕They kept a vigilant watch for the enemy.他们时刻警惕着敌人。牛津搭配The antelopes are on their guard against lions and other predators.羚羊警惕着,以防狮子和其他食肉动物的袭击剑桥国际The police are on the alert for (=watching carefully for) any suspicious packages that might contain bombs.警察警惕着任何可能藏有炸弹的可疑包裹。剑桥国际 |