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。
- Alarmed at the first sound, we hit the dirt. 第一声警报一响我们就迅速卧倒。
- She cleaned the dirt from her finger-nails. 她从指甲里剔掉污垢。
- He urged them to guard against conceit. 他要求他们防止骄傲自满。
- I got an old lawn-mower as cheap as dirt. 我买了一台老的割草机非常便宜。
- Wheels leave grooves in dirt roads. 车轮在泥路上留下凹痕。
- 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。
- He scoured off the dirt from the floor. 他擦去地板上的污垢。
- The dirt was deeply ground into the floor. 污垢被深深地压到地板里面去了。
- 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。
- Be quiet! We don't want to hear that kind of dirt! 别说了! 我们不想听那种下流话！
- The guard had orders to shoot on sight. 哨兵奉命见人就开枪。
- I bought this second-hand car dirt cheap. 我买了这辆旧车，便宜极了。
- Be on your guard, I conjure you. 千万要警惕呀，我恳求你。
- How could you treat her like dirt? 你怎么能把她看得一文不值呢?
- Four soldiers stood guard over the coffin. 四个士兵守卫灵柩。
- Why did he fling dirt at such an innocent girl? 他为什么要中伤一位如此天真的姑娘呢?
