1. Fire drills will be conducted in your residence hall every semester. 每学期在你的宿舍楼都会进行消防演习。
2. It's the mother of all disaster drills for what could be the worst disaster in American history. 这是美国历史上最严重的灾难演习之“母”。
3. The cordless, hand-held tools we use in our homes, such as vacuum cleaners, flashlights, drills and saws came from the technology of these early space programs. 我们家中所使用的无线手提工具,比如真空吸尘器、手电筒、钻头和锯,都来自于早期太空项目里的技术。
4. The coach had criticized him for not focusing on his soccer drills. 教练批评他没有把注意力放在足球训练上。
5. The focus on academic "skills and drills" has cut deeply into recess and other time for free play. 专注学业“技能训练”大大减少了课间休息和自由活动的时间。