[tán dào]
speak of [about]; talk about [of]; refer to
She never speaks of her mother.
她从未谈到她母亲。
The book tells about the writer's childhood.
这本书谈到作者的童年。
They talked about their life in Beijing twenty years ago.
他们谈到了20年前在北京的生活。
The teacher referred to in my last letter has gone abroad.
我上次信中谈到的那位老师到国外去了。