有/没有 + 用处
用处 (yòngchu) means "use" or "usefulness" and describes how practical or valuable something is. It often appears with 有 (have) or 没有 (not have) to express whether something is useful. For example, 没有用处 means "of no use."
学一门外语以后会有很大的用处。
xué yì mén wàiyǔ yǐhòu huì yǒu hěn dà de yòngchù.
Learning a foreign language will be very useful in the future.
这些旧东西留着也没什么用处,不如扔了吧。
zhèxiē jiù dōngxi liúzhe yě méi shénme yòngchù, bùrú rēng le ba.
These old things are of no use keeping around; we might as well throw them away.
你觉得这个工具对我们有用处吗?
nǐ juéde zhège gōngjù duì wǒmen yǒu yòngchù ma?
Do you think this tool is useful to us?