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How to Say ‘How long?’ in Simplified Chinese

多长时间?

duō zhǎng shí jiān

[duō cháng shir-jyen]

💬 Usage Tip: 多 + an adjective asks "how ___": 多长 "how long", 多大 "how big/old", 多远 "how far".

Phrase Breakdown

多

duō

[duō]

how (to what extent)

Before an adjective in questions, asks about degree or amount.

Example

这条河多宽?

How wide is this river?

长

zhǎng

[cháng]

long

Adjective for length of space or time.

Example

这条路很长。

This road is long.

时间

shí jiān

[shir-jyen]

time

Refers to time in general or a specific time slot or schedule.

Example

你什么时候有时间?

When do you have time?

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