pin cop

例句：

1. 1. She pinned the clothes together with a button.
   她用一个纽扣把衣服缝在一起。
2. 2. The buttonhole on his shirt is undone.
   他衬衫上的纽扣孔没系好。
3. 3. He had to pin up his shirt so it wouldn't fall open.
   他不得不把衬衫的纽扣系紧，以免它掉下来。