Subgrondation
[医] 骨嵌凹
🗣️ 情景例句
Richard and I will put them into the envelopes.
我和Richard把它们放进信封。
He tries to button his own shirt,but he can't do it.
他试着扣好他的自己的衬衫，但是他不能做到。
I saw it with my own eyes.
我亲眼所见。