title slide

例句：

1. 1. The teacher used a title slide to introduce the lesson.
   老师使用一个标题幻灯片来引入课程。
2. 2. The student gave a presentation slide on climate change.
   学生做了一个关于气候变化的演示幻灯片。
3. 3. The conference had many presentation slides on various topics.
   会议有关于各种话题的许多演示幻灯片。