Word: 多久

你在这家公司工作了多久了？

Nǐ zài zhè jiā gōngsī gōngzuòle duōjiǔ le?

How long have you worked at this company?

你等了多久?

Nǐ děng le duōjiǔ?

How long did you wait?

你等了多久了?

Nǐ děng le duōjiǔ le?

How long have you been waiting?

我想知道这需要多久。

Wǒ xiǎng zhīdào zhè xūyào duōjiǔ.

I'd like to know how long this will take.

我想知道这需要多久时间。

Wǒ xiǎng zhīdào zhè xūyào duōjiǔ shíjiān.

I'd like to know how long this will take.