这片仙人掌的表面摸起来非常粗糙。

The surface of this cactus feels quite ___scabrous.

这部电影因含有粗俗内容而被禁止上映。

The movie was banned for its ___scabrous content.

这个道德困境非常棘手，让所有人都感到困扰。

The ethical dilemma was particularly ___thorny, troubling everyone involved.