在某些家庭里，谈论政治话题是个禁忌。

In some families, discussing politics is a ___taboo.

在一些文化中，直呼长辈的名字是禁忌。

In some cultures, calling elders by their first name is ___taboo.

在某些文化中，公开谈论死亡仍被视为禁忌。

In some cultures, openly discussing death is still considered ___taboo.