Chinese phrase
〜需要多久？ 〜 xū yào duō jiǔ
Meaning
How long does ___ take?
When to use it
This question asks how much time something takes. It is commonly used for travel, tasks, and other activities, in a neutral and polite way.
Example dialogue
从机场到市区 需要多久？ cóng jī chǎng dào shì qū xū yào duō jiǔ
How long does it take from the airport to downtown?
坐地铁大约40分钟。 zuò dì tiě dà yuē 40 fēn zhōng
It takes about 40 minutes by subway.