【届时参加是什么意思】...的歌唱家作精彩表演.请同学们届时参加.欢迎老师们参与.)】

问题补充：

英语翻译将括号内的句子翻译成英语(9月30日晚上7点在学校礼堂举行国庆庆祝会.我们邀请了著名的歌唱家作精彩表演.请同学们届时参加.欢迎老师们参与.) 英语

答案：

【答案】 The Celebration on the National Day is scheduled to be held in the School Hall at 19:00 of Sep.30. We have invited some well-knows singers to give their splendid performance then. All of the students are invited. Teachers are warmly welcome to attend it.