Mandibula
下颌骨
🗣️ 情景例句
Please give me a general view first, will you?
首先，请给我一个大概的介绍，行吗？
I'm practising tai chi chuan in the park.
我在公园打太极拳。
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，