Over 5,000 hours of work went into this software, and today it's my privilege to bring it to you.
这种软件的研制超过5000工作小时,今天我很荣辛地向你们展示它。
He lived in this century, was born in Germany and spent the last part of his life in the USA.
他生活在本世纪,出生于德国,在美国度过了他的晚年。