When you attend to Chinese language school to study Chinese, you may often learn some formal Chinese. However, you need some oral language when communicating with Chinese people. For instance, the expression 妈呀 may be frequently used in daily life like 妈呀！你吓死我了！There is another interjection which has the same meaning and application with this one, 老天爷. It is also used to show surprise at something. For instance, 这么多作业！老天爷，什么时候能做完呐！

It often happens that you and your friends help each other in the daily life. After you seek help from others, you need to say something to express your gratitude. As a common structure, 麻烦…了is often applied to extend gratitude when asking for help from others or after being helped by them like 这封信请你一定要带给张教授，麻烦你了. When you study Mandarin online, you may see the note that the substitute words are usually the second pronoun or the third pronoun such as 麻烦他了or 麻烦你们了.

You may have learned the Chinese oral expression of expressing something is not bad like 还好. However, there is also another word you should know to express the same meaning, 马马虎虎, meaning to be just so-so. For instance, 甲：您最近身体好吗？乙：马马虎虎，没闹什么大病. Sometimes, it carries the tone of being modesty like that in the following dialogue. 甲：我读了您的新作，写得真有水平。乙：马马虎虎，请您多提意见.

When you are going to say “don’t worry” to your Chinese friends after you learn Mandarin, you should realize that you can express it in Chinese language 慢慢儿来. When we apply this expression, we usually mean to persuade the others not to feel worried and to do things step by step. For instance, 甲：这个动作我怎么老做不好！乙：慢慢儿来，多体会体会动作要领再练.