英音 
[ðer]
 
美音 
[ðer]
 
 
their 基本解释
pron.他（她，它）们的；在提及性别不详的人时，用以代替 him 或 her

We should follow their example .
我们应该向他们学习。
Their parameters are quite different .
它们的参数颇为不同。
Their eggs are very tough .
它们的卵十分坚硬。
We are all their descendants .
我们是他们的后代。
The topic was their marriage .
话题是他们的婚姻。