1

我不知道

wǒbùzhīdào

I don't know.

=2

你

nǐ

you (informal, as opposed to courteous 您 nín)

=2

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.)

=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

計畫

jìhuà

variant of 计划 jìhuà