Aldehydrol
水合醛
🗣️ 情景例句
Something important.
一件重要的事。
A good tongue is a good weapon.
伶俐的口齿是一种锐利的武器。
Many firms, for instance, have great difficulty in obtaining technical or scientific books from libraries
比如，很多公司向图书馆借阅科技书籍时感到很困难，