您要查找的是不是：
- cervical drill guard 颈椎钻孔保护器
- cross bar for stabilizing drill guard 钻保护器固定用十字形杆
- bar for stabilizing drill guard, cross 钻保护器固定用十字形杆
- The dog kept a vigilant guard over the house. 这只狗警惕地守护着这所房屋。
- He urged them to guard against conceit. 他要求他们防止骄傲自满。
- He bribed his way past the guard and escaped. 他买通看守而逃之夭夭了。
- I was off my guard and made no suitable reply. 我没提防，因此没有作出适当的回答。
- The guard of honor headed up the whole parade. 仪仗队走在游行队伍的最前头。
- At six we were fallen in for drill. 六点钟我们站好队准备操练。
- Please guard against pickpockets on the bus. 在公共汽车上要谨防扒手。
- The soldier volunteered for guard duty. 那个战士自告奋勇去站岗。
- The sound of that drill jangles horribly on the nerves. 那台钻机的声音响极了，十分刺耳。
- You'd better set a goal before you start the drill. 练习开始前，你最好设定一个目标。
- After a long drill he told the squad to fall out. 操练了好半天之后，他让这个班解散了。
- The guard had orders to shoot on sight. 哨兵奉命见人就开枪。
- She had lots of drill in listening. 她在听力方面受过许多训练。
- Be on your guard, I conjure you. 千万要警惕呀，我恳求你。
- This drill can bore through rock. 这台钻机能钻透岩石。
- Four soldiers stood guard over the coffin. 四个士兵守卫灵柩。
- The guard should be watchful during the night. 警卫在黑夜里也应该警醒。
