音標(biāo)發(fā)音英式音標(biāo) [?'l??tn?s]美式音標(biāo) [?'l?tn?s]國(guó)際音標(biāo) [?'l?:tnis]美式發(fā)音 基本解釋n.警戒；機(jī)敏同根派生adj性質(zhì)的同根詞alert：警惕的，警覺(jué)的；留心的。adv性質(zhì)的同根詞alertly：留意地；提高警覺(jué)地。n性質(zhì)的同根詞alert：警戒，警惕；警報(bào)。vt性質(zhì)的同根詞alert：警告；使警覺(jué)，使意識(shí)到。alertness相關(guān)詞英漢例句The drug improved mental alertness.該藥有助于提神。Alertness, calmness, courage : he could see them all in the youngster's face.機(jī)警, 鎮(zhèn)定, 膽量,都擺出在這年青人的臉上.We must maintain a military standard, an alertness, and never vary it.我們必須保持軍隊(duì)的準(zhǔn)則, 應(yīng)當(dāng)隨時(shí)注意,切勿隨時(shí)變動(dòng).The drug improved mental alertness.該藥有助于提神。Alertness, calmness, courage : he could see them all in the youngster's face.機(jī)警, 鎮(zhèn)定, 膽量,都擺出在這年青人的臉上.alertness更多例句詞組短語(yǔ)短語(yǔ)heightened alertness 高度警惕keep alertness 保持警覺(jué)over alertness 過(guò)度警覺(jué)alertness value 警戒值class alertness 階級(jí)意識(shí)alertness更多詞組專業(yè)釋義醫(yī)藥科學(xué)警覺(jué)