(一):

　　Let's give him a big hand.

　　让我们热烈鼓掌欢迎他。

　　Let's give her a warm welcome!

　　让我们以热烈的掌声欢迎她!

　　Let's clap her on.

　　让咱们鼓掌欢迎她上来。

　　(二):

　　We appreciate them for their contributionsto the US-China relationship.

　　我们感谢他们为美中关系作出的贡献。

　　We would like to thank John for his tremendous contribution.

　　我们要感谢约翰作出的巨大贡献。

　　Finally, we do appreciate the contribution that everybody makes for the company.

　　最后，我们非常感谢大家为公司作出的贡献。