大家好,很高兴和大家认识,是这项工作把我们聚到一起,我讲的这堂课很有必要,它关系到大家的切身利益,有的人可能还很反感,说我干了那么多年都没有出事,怎么你一说就那么可怕,是不是有点小题大 Hi everyone, I am very happy to meet with you. It is this work that brings us together. This course is very necessary for me. It has something to do with the vital interests of everyone. Some people may be very upset that I did that There have been no accidents for many years, how can you say it so terrible?