有错误, of 应改为from

There are things which are made from wildlife.

句意: 有用野生动物制成的东西/物品.

be made of 用...制成,用...做成(制成品看得出原材料)

be made from 用...制成,用...做成(制成品看不出原材料或原材料发生了化学变化)

用野生动物制成的东西已看不出原材料是什么.因此用be made from .谢谢谢谢，这点真没看得出 话说其实我是问 用which没问题吗？可不可以用that代替用which没问题, 可以用that代替. 当先行词为物时, 用which/that 都可引导定从,都是在定从中作主语. 楼下那些说的省略which are, 用过分作定语修饰things 也可.