[Story] The grandfather, a retired researcher, often debated with his philosopher friend whether they should teach together.

[参考翻译] 祖父，一位退休的研究员，经常与他的朋友哲学家争论他们是否应该一起教学。

[Words]

  1. grandfather [ɡrændˌfɑːðər] n 爷爷，外公
  2. philosopher [fəˈlɒsəfər] n 哲学家
  3. researcher [rɪˈsɜːrtʃər] n 研究者
  4. together [təˈɡeðər] adv 一起
  5. whether [ˈweðər] conj 是否