Chinese phrase
用什么语言交流？ yòng shén me yǔ yán jiāo liú
Meaning
What language should we communicate in?
When to use it
This asks which language to use for communication. It is a practical, neutral question when people may use different languages.
Example dialogue
你是交换生吧？我们平时 用什么语言交流？ nǐ shì jiāo huàn shēng ba wǒ men píng shí yòng shén me yǔ yán jiāo liú
You're an exchange student, right? What language should we usually use to communicate?
平常主要是中文，不过需要的时候也会用英文。 píng cháng zhǔ yào shì zhōng wén bú guò xū yào de shí hòu yě huì yòng yīng wén
Usually, I mainly use Chinese, but I use English when needed too.