Certain passages were excised from the book.是什么意思？

Certain passages were excised from the book.

书中某些段落已删去。

certain

adj. 某一，必然的，已确定的；pron. [动词用复数]某些；

例句
Paramedics are trained to administer certain drugs.
护理人员们接受了配发某些药物的培训。

passages

n. 通道( passage的名词复数 )，经过，通路，（文章的）一段；

例句
He plays some passages so slowly that they become lugubrious.
有些段落他演奏得异常徐缓,听上去有些忧伤。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

excised

v. 切除，删去( excise的过去式和过去分词 )；

例句
The lesion was excised and histopathologic examination showed an osseous choristoma.
此肿块经外科手术切除,组织病理检查发现为一骨性迷离瘤.

from

prep. （表示时间）从…，（表示原因）因为，（表示来源）来自…，（表示分离）与…分离[隔开]；

例句
...an abortive attempt to prevent the current President from taking office.
企图阻止现任总统连任的失败尝试

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

book

n. 书，卷，课本，账簿；vt.& vi. 预订；vt. 登记，（向旅馆、饭店、戏院等）预约，立案（控告某人），订立演出契约；adj. 书的，账簿上的，得之（或来自）书本的，按照（或依据）书本的；

例句
Throughout the book we have addressed ourselves to the problem of ethics.
整本书中我们都在探讨伦理观的问题。