Results Normative hand-washing would evidently cut down the total numbers of colony and bacterium.

结果规范的卫生洗手后能明显的降低手的菌落总数和细菌。

youdao

Results Normative hand-washing would evidently cut down the total numbers of colony and bacterium.

结果规范的卫生洗手后能明显的降低手的菌落总数和细菌。

youdao