why
01
为什么, 为何
used for asking the purpose of or reason for something
例子
Why are you late for school today?
为什么你今天上学迟到了？
Why did she choose that particular color for her room?
为什么她为她的房间选择了那种特定的颜色？
02
为什么
used to provide the reason for or the purpose of something
Why
01
原因, 理由
the cause or intention underlying an action or situation, especially in the phrase `the whys and wherefores'
why
01
为什么
used to introduce the reason for an action as the subject or object of the verb or preposition
例子
I do n't know why he said that.
我不知道他为什么那么说。
Why he left is a mystery.
为什么他离开是一个谜。
