Polypneustic
多孔气门的
🗣️ 情景例句
You're sure Alexandra's going to be surprised?
你确定Alexandra会很惊讶吗？
Thank you very much.
非常感谢大家。
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，