Unsnapping
(unsnap 的现在分词) v.解开扣子
🗣️ 情景例句
but when I received the letter
但是当我收到那封信
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。
This was indeed the case.
但事实上确有此人。