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The amount of garbage we produce every day is not the same, but the sizes of garbage bags are regular. when there's only a little of garbage in the trash can, we won't throw it away; therefore, it smells bad and maybe attract some bugs.
If we use the concept of sealing,the using amount of garbage bags can depend on the amount of garbage. In this way,we don't have to worry about the bad smell. Besides,we can control the using of garbage bags and won't waste resources.
CHIA－YEN / CHUNG,
Da Yeh University