tabnab

例句：

1. 1.The taboo subject was discussed in class.
   课堂上讨论了禁忌话题。
2. 2. He was bannedfrom the club for life.
   他因终身禁入俱乐部。
3. 3. The taboo topic is stilla hotly debated issue.
   这个禁忌话题仍然是热议的话题。