factory的复数形式

复数形式是factories，例如：

1.Two factories were closed in an attempt to cut costs.为削减费用，关闭了两家工厂。

2.Japanese production methods have been transplanted into some British factories.日本的生产方法已被引进到一些英国的工厂。

3.The river has been polluted with toxic waste from local factories.当地工厂排放的有毒废弃物污染了这条河。

《2》

factory 的词尾是 “辅音字母＋y，变复数时应该改 y 为 i 或再加后缀 -es，即 factories。