Detailed Instructions: In this task, given a sentence in the Chinese language, your task is to convert it into the English language.
Problem:美国驻伊拉克高级外交官克罗克大使也参加了彼得雷乌斯将军向国会的演讲。
Solution:
The top U.S. diplomat in Iraq, Ambassador Ryan Crocker, also joined General Petraeus in the presentation to Congress.