1. Troops were reported to be guarding the key points there. 据报告,部队正守卫着那儿的要塞。
2. Police patrol at night guarding the town. 警察夜间巡逻保护这个城镇。
3. I see the Russian soldiers standing on the threshold of their native land, guarding the fields which their fathers have tilled from time immemorial . 我眼前看到的是,俄国的士兵们站在他们故乡的门旁,在捍卫着他们的祖先自古以来耕种的田地。