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。
- She performed on the balance beam with much grace. 她在平衡木上表演得非常优美。
- 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。
- The beam of the searchlight pierced the darkness. 探照灯的光柱射入黑暗中。
- Please guard against pickpockets on the bus. 在公共汽车上要谨防扒手。
- His answer was right on the beam. 他的答案完全正确。
- The soldier volunteered for guard duty. 那个战士自告奋勇去站岗。
- 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。
- Four soldiers stood guard over the coffin. 四个士兵守卫灵柩。
- He struck the beam with his head. 他的头撞到梁上了。
- The guard should be watchful during the night. 警卫在黑夜里也应该警醒。
- The beam has a thickness of 3 inches. 这根梁厚3英寸。
- The guard was killed with a high-powered rifle. 那卫兵被杀伤力大的火枪击毙了。
- Never heard of her. You're off the beam. 我从来没有听说过这个人，你搞错了吧。
- The train robbers coshed the guard. 抢劫列车的匪徒用短棍袭击列车长。
- Mind you don't knock your head (on this low beam). 小心，别(让这根低梁)撞著头。
