1.
DET
A speaker or writer uses your to indicate that something belongs or relates to the person or people that they are talking or writing to. 你的; 你们的
例：
Emma, I trust your opinion a great deal.
埃玛，我非常相信你的观点。
例：
I left all of your messages on your desk.
我把你的所有便条都放到你的书桌上了。
2.
DET
In spoken English and informal written English, your is sometimes used to indicate that something belongs to or relates to people in general. 你的 (口语中用于泛指属于或有关任何人的)
例：
Painkillers are very useful in small amounts to bring your temperature down.
小剂量的止痛药对于降低体温非常有用。
3.
DET
In spoken English, a speaker sometimes uses your before an adjective such as "typical" or "normal" to indicate that the thing referred to is a typical example of its type. 人们所认为的 (口语中用于形容词前，表示所指事物为某类事物的典型)
例：
This isn't your typical economics class.
这不是人们所认为的典型的经济学课。