例句：
It was a new era in the history of our country.
这是我国历史上的`一个新纪元。
I have a history class at 9 o'clock.
我9点钟有历史课。
She used her family's history as a base for her novel.
她以她的家族史作为小说的素材。
We won't talk about that ─ that's history.
我们不会谈论那件事的——那都已经过去了。
She's writing a new history of Europe.
她正在写一部新的欧洲史。