factory

1、factory 的芯是"做"，不是"事实"：它来自词根 fact「做」加 -ory「地点后缀」——做的地方就是工厂。这样 fact(做过的事→事实)、effect(做出来的→结果)、factory 就是一家。
2、factor 顺带记：它本指"做的人、经办人"，后来才成了数学里的"因式"和"因素"。所以 a key factor 关键因素，逻辑是"做事的那一方"。
3、用法：a car factory 汽车厂、factory worker 工人、factory farm 集约养殖场。别拼成 *factoriy；重音在第一音节 /ˈfæk/。

factory 工厂

来自词根fact, 做，词源同fact,effect. -ory, 地点后缀。

factory

factory: [16] Latin factor, a derivative of facere ‘make’, meant ‘maker, doer’ (it was introduced into English in the 15th century as ‘agent’, but was not adopted as a mathematical term until the mid 17th century). Among its post-classical derivatives were late Latin factōrium ‘oil-press’ and medieval Latin factōria ‘establishment for factors or agents’.

It appears that the latter must have been the original source of the word factory in English, which at first meant ‘factorship, agency’. However, this does not fit in at all with its main modern sense ‘place where things are made’, first recorded in the early 17th century, which presumably must go back in some way to Latin factōrium.
=> fact

factory (n.)

1550s, "estate manager's office," from Middle French factorie (15c.), from Late Latin factorium "office for agents ('factors')," also "oil press, mill," from Latin factor "doer, maker" (see factor (n.)). From 1580s as "establishment of merchants and factors in a foreign place." Sense of "building for making goods" is first attested 1610s. Factory farm attested from 1890.

1. Nora was deflowered by a man who worked in a soda-water factory.

在汽水厂工作的一个男子夺去了诺拉的童贞。

2. The demand generated by one factory required the construction of another.

一家工厂产生的需求使得必须再建造一家工厂。

3. The girl had found out about the goings-on in the factory.

这个女孩已经发现了工厂里的勾当。

4. The factory may make as few as 1,500 cars this year.

今年，工厂生产的小轿车可能只有1,500辆。

5. He's got a bee in his bonnet about factory farming.

他满脑子都是工厂化养殖的事儿。

【plant, mill, factory, works】
这组词都有“工厂”的意思，其区别是：
plant: 多指电力或机械制造方面的工厂。
mill: 原义指粮食加工厂。现多指轻工业类的工厂。
factory: 最普通用词，可泛指任何制造产品的地方。
works: 多指钢铁等重工业方面的工厂，也指一些特定的厂。