基本解釋提防；警戒著；隨時(shí)準(zhǔn)備著英漢例句雙語(yǔ)例句Often on the alert, she checks once but twice in the event...她總是警惕著，一個(gè)事情上檢查了一遍又一遍。He whose expectation does not lead him to be on the alert for its coming will get but little.所以一個(gè)人的期待，倘使不能警覺(jué)到神助之將臨，所得必屬稀少。We are therefore campaigning for authors, researchers and editors to be on the alert for plagiarism and to work against cultural misunderstandings.因此我們正在幫助論文作者、研究人員以及雜志編輯小心提防剽竊，而且還要對(duì)抗文化上的誤解。原聲例句For the first time the W.H.O.raised its alert level from phase four to phase five on April twenty-ninth.because all we konw now it's orange alert, the alert level has gone up or gone down We don't really know what it goes on behind the scene.我們都知道現(xiàn)在是橙色警報(bào)，警戒線(xiàn)時(shí)高時(shí)低,我們真的不知道,事情背后是如何處理的。普林斯頓公開(kāi)課 - 國(guó)際座談會(huì)課程節(jié)選But it has taken on new urgency,coming one day after the World Health Organization raised its global swine flu alert to Phase 4 on the six-point scale.權(quán)威例句He said he had warned all his employees to be constantly on the alert.NPR: Texas DA Slain In His Home; Had Armed Himselfon the alert更多例句詞組短語(yǔ)短語(yǔ)put on the alert 處于戒備狀態(tài)be on the alert 在警惕中的;注意;提防;警戒Keep on the alert 提防著點(diǎn)Battle Fortress on the alert 戰(zhàn)斗要塞警戒之中be on the alert for 警戒;戒備on the alert更多詞組