手上的污垢 meaning in Chinese
hand-transmission of irritants
Examples
- It is necessary to remove the dirt and pathogenic bacteria , to avoid contaminating germ free or sanitizing articles and to avoid infection and cross - infection
答：除去手上的污垢及污染的致病菌，避免污染无菌物品或清洁物品，避免感染和交叉感染。