| 釋義 |
a.lert
?`l?t;??l?:t
<<形容詞>>
1 留心的; 警覺的
alert to danger
警覺到危險(xiǎn)
an alert bank guard
銀行警戒裝置
2 機(jī)敏的; 敏捷的
3 靈活的
the bird's alert hopping from branch to branch
小鳥靈活的在枝頭跳來跳去
<<名詞>>
1 警報(bào)
Sirens sounded the alert for an air raid.
空襲警報(bào)的警笛響起
2 發(fā)出警報(bào)的期間
Nuclear-armed bombers were put on alert during the crisis.
核武轟炸機(jī)在危機(jī)期間負(fù)責(zé)警戒
<<及物動(dòng)詞>>
a.lert.ed, a.lert.ing, a.lerts
發(fā)出警報(bào)
a flashing red light that alert motorists to trouble ahead
閃爍的紅燈警告駕駛?cè)饲懊嬗袪顩r發(fā)生
<<慣用語>>
on the alert
警戒著; 提防著
bird watchers on the alert for a rare species
看守者警戒稀有鳥類
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