what do you want to buy
“您想买什么？”“我想买条狗。”
“What would you like to buy?” “I’d like to buy a dog.”
你想买什么
What do you want to buy?
— 预言者 (2009)
我只需要弄清楚他们想买什么。
I just need to find out what they want to buy.
想买什么？
— 春光乍泄 (1997)