我不知你是否知道，但在美国你要给服务员付小费。

I don't know if you know or not, but here in America you're expected to tip the waiter.

Source: Tatoeba

Sentence Composition

1 我 wǒ
  1. I
  2. me
  3. my
2 不知 bùzhī
  1. not to know
  2. unaware
  3. unknowingly
  4. fig. not to admit (defeat, hardships, tiredness etc)
=3 你 nǐ you (informal, as opposed to courteous 您 nín)
=3 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.)
4 是否 shìfǒu
  1. whether (or not)
  2. if
  3. is or isn't
5 知道 zhīdào
  1. to know; to become aware of
  2. also pr. zhīdao
6 但 dàn
  1. but; yet; however; still
  2. merely; only; just
7 在 zài
  1. to exist; to be alive
  2. (of sb or sth) to be (located) at
  3. (used before a verb to indicate an action in progress)
8 美国 Měiguó United States; USA; US
=9 你 nǐ you (informal, as opposed to courteous 您 nín)
=9 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.)
=10 要 yāo (bound form) to demand; to coerce
=10 要 yào
  1. to want; to need; to ask for
  2. will; shall; about to
  3. need to; should
  4. if (same as 要是 yàoshi)
  5. (bound form) important
=10 要 yǎo
  1. (archaic) alternative form of 偠 (yǎo)
  2. alternative form of 偠 (yǎo)
  3. used in 要褭／要袅
=11 给 gěi
  1. to
  2. for
  3. for the benefit of
  4. to give
  5. to allow
  6. to do sth (for sb)
  7. (grammatical equivalent of 被)
  8. (grammatical equivalent of 把)
  9. (sentence intensifier)
=11 给 jǐ
  1. to supply
  2. to provide
12 服务员 fúwùyuán
  1. waiter
  2. waitress
  3. attendant
  4. customer service personnel

classifiers: 個, 位
=13 付 Fù surname Fu
=13 付 fù
  1. to pay
  2. to hand over to
  3. classifier for pairs or sets of things
14 小费 xiǎofèi
  1. tip
  2. gratuity