+s比较好,其实都可以.
牺牲, 舍身 His parents made a lot of sacrifices to make sure he got a good education.
牺牲;牺牲的行为[C][U] Parents often make sacrifices for their children. 父母亲常常为子女作出牺牲 +s比较好,其实都可以.
牺牲, 舍身 His parents made a lot of sacrifices to make sure he got a good education.
牺牲;牺牲的行为[C][U] Parents often make sacrifices for their children. 父母亲常常为子女作出牺牲