问题描述:
这个句子有点不懂.
Paper money was in use in China when Marco Polo visited the country in 13th century.
in use in China是个什么用法?in use是表示什么?use 是什么词性?帮我讲解一下吧.
Paper money was in use in China when Marco Polo visited the country in 13th century.
in use in China是个什么用法?in use是表示什么?use 是什么词性?帮我讲解一下吧.
问题解答:
我来补答展开全文阅读