求翻译：水利部部长陈雷在庆祝大会上发表重要讲话。他代表水利部向我校全体师生员工和广大校友表示热烈祝贺！是什么意思？

Minister of Water Resources Chen Lei in the celebrations of the important speech. On behalf of Ministry of Water Resources to our school staff and students and alumni of all extended warm congratulations!

The Ministry of Water Resources minister Chen Lei at the celebration rally, delivered an important speech. He represents the Ministry of Water Resources to all students and the general alumni association school I warmly congratulate!

Ministry of Water Conservation Minister Chen Lei makes the important speech at the celebration meeting.He expresses the warm congratulation on behalf of Ministry of Water Conservation to my school all teacher and student staff and the general alumni!

Minister of water resources, Chen Lei made an important speech at the celebration rally. He represented the Ministry of water resources to all teachers in our school and the Alumni expressed warm congratulations!

Chen Lei, director of Ministry of Water Resources, delivers important speech at the celebration meeting. He says to all teachers, students, administrative personnel and workers and the masses of alumnus of our school that warmly congratulation on behalf of Ministry of Water Resources!