Thanks for everything, if you ever need a favor in return, just let me know.
感谢你所做的一切,如果你需要我帮忙的话,尽管开口吧。
If he, or someone like him, were alive today, he might be able to tell us what to expect in the next fifty years.
如果他或是像他的什么人今天还活着的话,他大概可以告诉我们下一个50年后会发生什么事情。