Dialogues　

1. 你们有什么特色菜？ Nǐmen yǒu shénme tèsècài?
What are your specialties?
What are your specialties？
Usually when eating in a Chinese restaurant we often ask the waiter or waitress "what are your specialties？" because there are many different types of restaurants.
Food in various restaurants taste different, which may be attributed to the vast region in China. For example, Sichuan food is very spicy and Shanghai dish tends to be sweet. So it's necessary to learn such expressions before ordering the dishes. For that you can say: : Ni3men you3 shen2me te4se4 cai4?
Ni3men means you.
you3, to have.
shen2me, what.
te4se4, special.
cai4, dish.

2. 你需要刀叉吗？Nǐ xūyào dāochā ma?
Do you need a knife and fork?
Do you need a knife and fork?
That was the replay of the first conversation clip. Chopsticks are the unique tool for the Chinese when having food. For the foreigners who just came to Chinese or those having been here for a short period of time, the waitress may offer you a knife and fork in case you are not used to the chopsticks. Do you need a knife and fork? Ni3 xu1yao4 dao1cha1 ma?
xu1yao1 means need.
dao1 is knife.
And cha1 is fork.
ma again is a particle, indicating this is a question.

3. 请问你要红茶吗？Qǐngwèn nǐ yào hóngchá ma?
Please may I ask would you like to have black tea?
Please may I ask would you like to have black tea?
Chinese tea is very famous. And when eating with your Chinese friends you need to show your concern about others, like asking her if she would like to drink black tea. You can say it in this way: Qing3 wen4 ni3 yao4 hong2 cha2 ma?
Qing3, please.
wen4, to ask.
Qing3 wen4, please may I ask. When asking for infomation, the Chinese people often put "qing3 wen4" at the beginning of a sentence in order to be polite. For example, qing3 wen4, ni3 jiao4 shen2me ming2zi? Please may I ask what's your name? Qing3 wen4, ni3 zuo4 shen2me gong1zuo4? Please may I ask what's your job?
ni3, you.
yao4, to have.
hong2 cha2, black tea.
ma is a particle and denotes this is a question. In Chinese an interrogative particle is put at the end of a sentence

4. 我们AA制吧。Wǒmen AAzhì ba.
Let's split the bill.
Among the Chinese yongsters now it's common to go Dutch. We say "let's go dutch". In Chinese You can say:wo3men AA zhi4 ba.
wo3men, we. 
AA zhi4, go Dutch.
ba is a particle.