1.他们的;她们的;它们的
You usetheir to indicate that something belongs or relates to the group of people, animals, or things that you are talking about.
e.g. Janis and Kurt have announcedtheir engagement...
贾尼斯和库尔特已宣布订婚。
e.g. Horses were pokingtheir heads overtheir stall doors.
马儿们从马厩门上探出头来。
2.(代替 his or her，而不指明是男是女;有人认为这种用法不对)
You usetheir instead of 'his or her' to indicate that something belongs or relates to a person without saying whether that person is a man or a woman. Some people think this use is incorrect.
e.g. Every member will receivetheir own 'Welcome to Labour' brochure.
每个党员都将收到一本名为《欢迎加入工党》的小册子。
e.g. But anyone looking for income fromtheir investments is in a much worse state.
但是，那些指望靠投资获取收入的人境况更为糟糕。
1. 他(她,它)们的：them 他(她,它)们(宾格) |their他(她,它)们的 | it 它(主格)
2. their是什么意思
2. 他(她)们的：they 他(她)们 |their 他(她)们的 | that 那;那个
3. 他(她、它)们的：Her 她 |their 他(她、它)们的 | Twins 孪生子
