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alert的現在完成時為：alerted...
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alert的近義詞/同義詞有：nimble, ready, quick, vigilant, clear-witted, awake, job, the, lively, on, watchful, one's, prompt, wide, toes, attentive, ready, torpid, bright, job, brilliant, signal, cautious, lively, prompt, circ...
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alert的復數形式為：alerts...
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alert的現在進行時為：alerting...
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alert的反義詞有：torpid, asleep, languid, supine, heedless, listless, sluggish, lethargic, slow, dull, drowsy。adj.alert的反義詞（警覺的;機警的,機敏的;靈活的）：torpid, asleep, languid, supine, heedless, listless, sluggish, lethargic, slow, dull。...
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Due to a security alert, this train will not be stopping at Oxford Circus.由于安全戒備的原因，該次列車在“牛津街口廣場”站將不停留。Matcham steady and alert, at a sign from Dick, ran along the thwarts and leaped ashore.麥青機警 、 鎮靜地照著狄克向他做的手勢,急急地沿著船上的座...
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alert的第三人稱單數（三單）為：alerts...
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alert的一般過去時為：alerted...
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The armed forces were on high alert to guard against any retaliation.武裝部隊保持高度戒備，以防發生任何報復行動。The bank is alert to the danger.銀行充分意識到了危險。All the Plymouth hospitals are on red alert.普利茅斯所有的醫院都處于緊急狀態之中。...
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adj.警覺的，警惕的，注意的，思維敏捷的，活潑的n.警報，警戒狀態vt.向…報警...