1

我不知道

wǒbùzhīdào

I don't know.

2

他

tā

(third-person singular) (since the early 20th century, usu. male) he; him; his (bound form) other; another; some other (as in 他日 tārì and 他人 tārén)

=3

的

de

of; ~'s (possessive particle) (used after an attribute when it modifies a noun) (used at the end of a declarative sentence for emphasis) (used after a noun, verb or adjective to form a nominal expression, as in 皮革的 pígéde "one made of leather" or 跑堂儿的 pǎotángrde "a waiter (literally, one who runs back and forth in a restaurant)" or 新的 xīnde "new one") also pr. dì or di in poetry and songs

=3

的

dī

a taxi; a cab (abbr. for 的士 dīshì)

=3

的

dí

really and truly

=3

的

dì

(bound form) bull's-eye; target

4

姓

xìng

family name; surname to be surnamed ...