Patellae
n. 膝盖骨( patella的名词复数 )
🗣️ 情景例句
Practice tenses as much as possible.
操练各种时态。
Thanks.
谢谢。
Sometimes we aren't able to get into every building because there are too many steps.
有时我们并不能进每栋楼房，是因为楼梯太多了。