My adopted daughter's name in Chinese is Suixi Jia Cheng--what is its' tranlastion?
What would be her first name? How do you pronounce the full name in English? Thank you!

I believe her first name would be Jia. In Chinese, the order of the surname and first names are reversed. So in English, I think her name would be "Jia Cheng Suixi." I don't know about the translations, but I can help a little with the pronunciation. This is more approximate; I can't promise you it'll be perfect... it's hard to explain how to pronounce Chinese, but I'll do my best.
Suixi: "Swee-si"
Jia: Think of "meow." Replace the "m" with a "j," so you get a rhyme, "jeow." Keep the first syllable in mind, and replace the "ow" with the "a." You should get "Je-a (hard a)"; combine the "a" with the "Je," keeping that initial "J" sound from the "jeow."
Cheng: This is kind of hard to describe. I think it'd be a whole lot easier to just give you the English pronunciation for this. Think of "then," take the "en" syllable for the "en" in Cheng, and try pronouncing it like that.