Kneecaps
n. 膝盖骨, 护膝( kneecap的名词复数 )
🗣️ 情景例句
She sells sea shells on the shining seashore.
她在亮晶晶的海滩上卖贝壳。
How long have you lived here?
你住在这里多久了？
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，