我想感谢大家的鼓励。

Wǒ xiǎng gǎnxiè dàjiā de gǔlì.

I want to thank everyone for their encouragement.

感谢你的帮助。

Gǎnxiè nǐ de bāngzhù.

Thanks for your help.

感谢大家今天来参加我的生日会。

Gǎnxiè dàjiā jīntiān lái cānjiā wǒ de shēngrìhuì.

Thank you all for coming to my birthday party today.