China rolled out its fastest train yet on Tuesday and announced that the Three Gorges Dam, the world's biggest hydroelectric project, is now generating electricity at maximum capacity -- engineering triumphs that signal the nation's growing ambitions as its economy booms.
中国周二向世界宣布已经研制出目前世界上最快的列车并且宣布世界最庞大的水电项目—三峡大坝现在正以最大装机容量运转中---工程技术方面的突破向世人昭示着伴随着经济领域的繁荣，这个国家的雄心也越来越大。

"its fastest train yet" - 是她如今最快, 即: 只是中国目前最快.   哪里也没有说是世界最快.

真服了是怎么翻译的.