to puan
对puan
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Puan Rika is preparing food in the school canteen. Which of the following is the most effective for preventing bacteria from spreading to the food?
丽卡女士正在学校的食堂准备食物。下面哪项能最有效地防止细菌散布到食物里？
youdao
应用推荐
模块上移
模块下移
不移动