=1

你

nǐ

you (informal, as opposed to courteous 您 nín)

=1

你

nǐ

you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)

2

为什么

wèishénme

why? for what reason?

3

为我

wèiwǒ

"each one for himself" (the individualistic philosophy proposed by Yang Zhu) (Chinese philosophy) "each one for himself" (the individualistic philosophy proposed by Yang Zhu)

4

担忧

dānyōu

to worry to be concerned