If it's badly insulated, it won't warm up regardless of how much heating you use.
断熱が悪いと、いくら暖房してもちっとも暖かくならない。
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If it's badly insulated, it won't warm up regardless of how much heating you use.
断熱が悪いと、いくら暖房してもちっとも暖かくならない。