adj.不相关的；无亲属关系的
The practice of rearing unrelated offspring occurs in several ant species. 只有几种蚂蚁可以抚育与自己并不相关的后代。
Analogies compare two seemingly unrelated things. They are often used in tests. 类推就是比较两个看上去不相关的事物。在测试中经常用到。
