Ladies and gentlemen, dear supervisors, teachers and schoolmates, good evening!

各位嘉宾，各位领导，各位老师们，同学们，晚上好！

youdao

Ladies and gentlemen, dear supervisors, teachers and schoolmates, good evening!

各位嘉宾，各位领导，各位老师们，同学们，晚上好！

youdao