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핫팩 포장 읽기: 몇 시간, 어디에 붙여요?

Learners read a Korean hot pack package and find the key numbers and safety rules.

この教材について

By the end, you can read a hot pack package to find how many packs are inside, how hot it gets, how long it stays warm, and the use-by date. You can also understand the "don't" rules that keep you safe.

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