splinter

1. N-COUNT A splinter is a very thin, sharp piece of wood, glass, or other hard substance, which has broken off from a larger piece. 薄而尖的碎片

...splinters of glass. …玻璃碎片。

2. V-T/V-I If something splinters or is splintered, it breaks into thin, sharp pieces. 使碎成片; 碎成片

The ruler cracked and splintered into pieces. 尺子裂了，碎成了片。