Dialogues 

1. 我的汉语不好。Wǒ de hànyǔ bù hǎo.
My Chinese is not very good.
我的 wǒ de, mine.
汉语 hànyǔ, Chinese.
不 bù , not.
好 hǎo, good.
我的汉语不好. My Chinese is not very good.

2. 我听不懂。Wǒ tīng bù dǒng.
I don’t understand it.

If you don’t understand what they are talking about, then you can tell them 我听不懂.
我 wǒ, is I.
听 tīng, to listen.
不 bù, not.
懂 dǒng, understand.
我听不懂. I don’t understand it.

3. 什么时候开学?Shénme shíhou kāi xué?
When does the semester begin?
什么 shénme, what.
时候 shíhou, time.
开学 kāi xué, semester begins.
什么时候开学? When does the semester begin?

4. 一个学期的学费是多少?Yí gè xuéqī de xuéfèi shì duōshao?
How much is the tuition for one semester?
You need to learn about the tuition fee. How much is the tuition for one semester? You can ask them 一个学期的学费是多少?
一个学期的 yí gè xuéqī de, one semester’s.
学费 xuéfèi, tuition fee.
是 shì, is.
多少 duōshao, how much.
一个学期的学费是多少? How much is the tuition for one semester?