alert adj. 1.警惕的,警覺的。 2.機警的,機靈的。 n. 1.警戒;警報。 2. 警戒期間。 3.【軍事】緊急待命。 No. one alert 一級戰備。 On the alert 警惕,提防。 vt. 使警戒。 The troops were alerted. 部隊在待命中。 adv. -ly ,-ness n.
Hearing this , i was instantly on the alert . 我一聽這話,當下就警惕起來。
They must be constantly on the alert for the enemy . 他們必須隨時注意敵人。
Old jolyon was on the alert at once . 老喬里恩立刻警覺起來。
Her fears had always been on the alert for an upheaval . 她日夜提心吊膽,嚴防突變。
The sentries were all on the alert . 哨兵們都警戒著。
Knowing that danger threatened, the sentry was on the alert . 因為知道危險勢將發生,這哨兵加意戒備。
They were constantly on the alert not to be taken by surprise . 他們一直處于常備不懈狀態以防突然襲擊。
The armies were constantly on the alert not to be taken by surprise . 部隊一直處于警戒狀態以防突然襲擊。
That was why he looked at the young man with a speculative frowning look, not condemning him, only wary and on the alert . 他所以要蹙著眉頭,帶著探索的神情望著這個年青人,對他存著戒心,而不斥責他,也就是這個道理。
Troops are on the alert against any possible aggression 軍隊戒備著可能的來犯。