=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

认为

rènwéi

to believe; to think; to consider; to feel

3

她

tā

she

4

多大

duōdà

how old? how big? how much? so big that much