This rule was introduced because of the high cost and difficulty in removing stuck chewing gum from public premises.

之所以设立这样一条法规，是因为清除公共场所的口香糖会花费很高的成本而且很难清除。

youdao

This rule was introduced because of the high cost and difficulty in removing stuck chewing gum from public premises.

制定这项规定是因为公共场所的口香糖清理工作非常困难且花费太高。

youdao

This rule was introduced because of the high cost and difficulty in removing stuck chewing gum from public premises.

制定这项规定是因为公共场所的口香糖清理工作非常困难且花费太高。

youdao