对白

例句：

1. 1. Theyengaged in a lively conversation about theirfavorite books.
   他们就他们最喜欢的书进行了热烈的交谈。
2. 2. The teacher asked the studentsto raise their hands if they had anyquestions during the class.
   老师要求学生举手，如果他们有问题的话。
3. 3. The two friends exchanged stories of their adventures during their lunchbreak.
   两个朋友在午休时交换了他们的冒险故事。