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- Maintenance Alert Directive 保养警戒指令
- A mass e-mail being circulated by hackers purporting to be a Microsoft Windows update alert directs computer users to a fake website where a Trojan virus is installed, security experts said. 骇客正广为寄送电子邮件，宣称这是一封微软视窗作业系统的程式更新提醒，实际上却引领电脑用户前往隐藏特洛伊病毒的假网页，安全专家说。
- One should not run about aimlessly during an alert. 空袭警报期间不可到处乱跑。
- She is always on the alert for some new calamity. 她总是保持警觉以防某种新的灾难。
- Keep on the alert; we're due for an inspection. 提防着点，轮到检查我们了。
- Be sure to be watchful or alert. 必须留神，千万要提防。
- The machinery requires constant maintenance. 这些机器需要经常保养维修。
- She cast her eyes down to avoid direct eye contact. 她垂下双目以避免对视。
- Maintenance of PC is in my element. 我对电脑的维修保养很在行。
- They have put the army on the alert. 他们已使军队进入戒备状态。
- The alert leopard went up to a deer quietly. 警觉的豹子静悄悄地走近一只鹿。
- I'll book you on a direct flight to London. 我将为你预订直飞伦敦的航班。
- An alert listener will have noticed the error. 耳朵尖的人能听出这个错。
- He's taking classes in car maintenance. 他正在上汽车维修课。
- He has chosen the most direct route. 他选取了最直的路线。
- Who is responsible for the building's maintenance? 谁负责这座大楼的保养事宜?
- The district was put on red alert during a terrorist bomb scare. 这个地区在得到恐怖主义者轰炸后作了应急准备。
- Alert to circumstances; attentive. 对周围环境敏感的; 留心的
- She's very direct, believes in speaking her mind. 她为人直率，喜欢有什么说什么。
- Has he enrolled in the car maintenance class this year? 他今年报名参加汽车维修班的学习了吗？
