button headed bolt

例句：

1. 1.The buttons on the shirt are all different sizes.
   这件衬衫上的纽扣大小都不一样。
2. 2.The buttons on his coat were all worn out.
   他的外套上的纽扣都磨损了。
3. 3.She carefully sewed the buttons onto the dress.
   她小心翼翼地把纽扣缝到裙子上。