When many foreign learners come to China, they often ask how to learn Mandarin Chinese better. As a matter of fact, the best way is to speak more. Then, they need to learn some frequently used expressions in oral Chinese. For example, 都…了is a structure applied to show it has reached a certain limit or situation. You can understand with the help of the example 都三月份了，天还这么冷.

If the learners see the word 德行during the learning process, they need to know it is used to disgust or contempt a person’s appearance and speech acts. Sometimes, it can be written as 德性. It carries a slight tone of cursing at people. But when a female uses it to curse an intimate partner, she pretends to be coquettishly angry. For instance, A: 那边那个男的老看你，是不是看上你了. B: 德行！你嘴里说不出好话来.

The pattern 动不动就… is also very frequently used by Chinese people in daily life which is applied to indicate a person is much inclined to make a reaction or take action. The foreign students who learn Chinese should know it also means a certain situation is easy to take place. The point needs attention is that it is more often used to describe something that is not expected to take place. For example, you can say 你带上伞吧，这两天天气不好，动不动就下雨.

Another expression you need to learn is 都怪…, which is to show it is totally somebody‘s responsibility for a certain terrible case or result. For example, you can make sentence like 都怪你起晚了，要不，上午就能把作业写完了. You should know it carries the tone of complaint or self-reproach. When you attend to study in Chinese program in China, teachers may also teach you the expression 都什么年代了is to emphasize the other party’s ideas or behaviors fall behind, carrying the tone of complaint or dissatisfaction like 都什么年代了，你怎么还想一家三代住一块儿啊？