资讯

Our hands touch many surfaces throughout the day, picking up bacteria and viruses. When we touch our face, food, or other people without cleaning our ...
A total of 1,319 students from 13 elementary schools in the county learned about soil, cultivation, food cycles, animals, ...
1. Wet your hands with clean, running water and apply soap. 2. Lather the soap by rubbing your hands together. Be sure to ...