大家好。 。。 大家好！ 今天在洛杉矶天气很好啊， 不冷相前些个天 （所以很多人病感冒）。 我不知道为什么今天很高兴写些个句子。

"Pay for a bill" after eating at the restaurant. 1. after eating at the restaurant, how can i say "pay for a bill" or "can i have a check"? 付钱 ， 付账 ， 买单 ， 计算。 Which one is correct and which one is the most common to say? 2. How do you say "waiter/ waitress" in Chinese? Thank you very much.

First notebook entry: Introducing myself 我现在在美国， 当时我长大在越南。 我喜欢话语， 所以我要学习中文。 我会说英文和越南文。 我喜欢听中文音乐， 还有喜欢打篮球。 我要 make a lot of 朋友。