题干

食品安全很重要。必须制定规则制度制止人们污染食品。

Food safety is very important. Rules must be made to____.

上一题 下一题 0.0难度 选择题 更新时间:2019-06-24 10:09:52

答案(点此获取答案解析)

prevent/keep/stop people from polluting food