第一步，为确保安全，当您购买和和打开每个食品前，应对您的粮食供应是保持跟踪。

The first step to ensuring the safety of your food supply is keeping track of when you purchased and opened each item.

youdao

第一步，为确保安全，当您购买和和打开每个食品前，应对您的粮食供应是保持跟踪。

The first step to ensuring the safety of your food supply is keeping track of when you purchased and opened each item.

youdao