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。
- 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。
- His vibrant voice commove the air. 他响亮的声音振动了空气。
- The guard of honor headed up the whole parade. 仪仗队走在游行队伍的最前头。
- There was a tremor in her voice. 她的声音有点颤抖。
- Please guard against pickpockets on the bus. 在公共汽车上要谨防扒手。
- Her beautiful voice charms everyone. 她优美的声音迷醉了每个人。
- The soldier volunteered for guard duty. 那个战士自告奋勇去站岗。
- A man's voice is usually lower than a woman's. 男子的嗓音通常比女子的低。
- The guard had orders to shoot on sight. 哨兵奉命见人就开枪。
- He had such a bad cold he lost his voice. 他患这么重的感冒，嗓子失声了。
- I suspected from his voice that he meant mischief. 我从他说话的声音就怀疑他不怀好意。
- Be on your guard, I conjure you. 千万要警惕呀，我恳求你。
- She asked me in a small voice what time it was. 她低声问我现在是什么时候了。
- Four soldiers stood guard over the coffin. 四个士兵守卫灵柩。
- He's an army sergeant. he needs a loud voice. 他是个好军人。他需要有大嗓门。
- 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。
