He was responsible for taking out rubbish, sweeping thefloor, disinfecting the hospital, dealing with used protective suits and bringing meals to patients.
他负责倒垃圾、扫地、对医院进行消毒、处理用过的防护服以及给病人送饭。
3
As simple an effort as walking up the stairs to the third floor, rather than taking an elevator, will eventually produce a noticeable effect.