splinter

一根刺扎进了手指。

A ___splinter is stuck in my finger.

由于理念不合，一些成员从环保组织中分裂出来，成立了一个新的小团体。

Some members broke away from the environmental group and formed a new ___splinter organization due to disagreements.

由于对环境政策的争议，一小部分成员从环保组织分裂出去。

A ___splinter of members left the environmental group due to disagreements over policies.