學個詞 Learn A Word:1087 alert

今天我們要學的詞是alert。 Alert, 警戒，警報。 "The National Weather Service put the area under a tornado alert until 7 o'clock tonight," 國家氣象局對本地發(fā)布龍卷風警告，晚上七點鐘解除。 "The police sent out a crime alert after 10 reported break-in cases in the area," 當地連續(xù)發(fā)生了十起入室搶劫案后，警察向居民發(fā)出警告，要他們加倍小心。 "The United States issued an alert on Sunday, warning Americans of possible terrorist attacks in Europe," 美國政府星期天發(fā)出警告，讓美國人對歐洲可能發(fā)生的恐怖襲擊提高警惕。好的，今天我們學習的詞是alert...