Meaning of duō kuī:

duō kuī

多亏

Preposition

thanks to

Duō kuī nǐ de bāngzhù, wǒ cáinéng ànshí wánchéng rènwù.

多亏你的帮助，我才能按时完成任务。

Thanks to your help, I was able to complete the task on time.

Adverb

luckily

Wǒmen duōkuīle nǐ de bāngzhù, cái shùnlì wánchéngle xiàngmù.

我们多亏了你的帮助，才顺利完成了项目。

We luckily had your help to successfully complete the project.