hard rubber bead

例句：

1. 1. This hard rubber bead is very useful for sealing the seam.
   这个硬橡胶珠子对于密封缝线非常有用。
2. 2.The hard rubber bead was a great help in fixing the broken window.
   这个硬橡胶珠子在修理破碎的窗户时起到了很大的帮助。
3. 3. The hard rubber bead was used as a decorative item on the table.
   这个硬橡胶珠子被用作桌子上的装饰品。