管理员摘要：
例句： I have a history class at 9 o'clock. 我9点钟有历史课。 It was the study of history that gave birth to the social sciences. 对历史的研究孕育了社会科学。 I loved history when I was at school. 我上学时喜欢历史。……
例句：
I have a history class at 9 o'clock.
我9点钟有历史课。
It was the study of history that gave birth to the social sciences.
对历史的研究孕育了社会科学。
I loved history when I was at school.
我上学时喜欢历史。