1. Like a sentinel on guard duty, or an artist working with his paints. 就像哨兵要时刻监守自己的岗位，画家要专心做画一样。
2. The factory where Spec. Thompson worked when not on National Guard duty cut back his hours. 汤普森在国民警卫队没有任务时工作的厂子也缩减了他的工作时间。
3. The responsibility of ISP disobeying the safety-guard duty includes direct responsibility and complementary responsibility. 运营商违反对虚拟财产的安全保障义务所承担的责任包括直接责任和补充责任。
