您要查找的是不是：
- The dog kept a vigilant guard over the house. 这只狗警惕地守护着这所房屋。
- She knows why the metal is the good conductor. 她知道金属为什么是好的导体。
- The chief conductor turned out to be a young woman. 列车长原来是一位青年妇女。
- He urged them to guard against conceit. 他要求他们防止骄傲自满。
- That iron is a good conductor is known to us all. 铁是良导体这是我们大家都知道的。
- The conductor punched his bus ticket. 售票员用剪票夹在他的汽车票上打孔。
- 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。
- Please guard against pickpockets on the bus. 在公共汽车上要谨防扒手。
- Under its new conductor, the errorism Act. 根据防止恐怖活动法案，拘留了六名疑犯。
- The soldier volunteered for guard duty. 那个战士自告奋勇去站岗。
- The young soprano was taken up by a famous conductor. 那年轻的女高音歌手受到一著名指挥家的提携。
- The guard had orders to shoot on sight. 哨兵奉命见人就开枪。
- Be on your guard, I conjure you. 千万要警惕呀，我恳求你。
- A lightning conductor protects a building from damage by lightning. 避雷针可保护建筑物不受雷击的破坏。
- 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。
- The guard was killed with a high-powered rifle. 那卫兵被杀伤力大的火枪击毙了。
- The train robbers coshed the guard. 抢劫列车的匪徒用短棍袭击列车长。
