1·When demand for Labour falls, firms want to hang on to them, just as they might mothball an expensive piece of machinery.
当劳动力需求降低时，公司希望像封存昂贵机械那样留住这些员工。
2·India plans to mothball its mainstay MiG-21 Soviet-era fighter jets, which have earned the sobriquet "flying coffins" because of their dismal safety record.
印度计划封存它主要的米格- 21喷气式战机，由于该装备令人沮丧的安全记录，它已经获得了“飞行棺材”的绰号。