英语语法分析

Half of the students in four large philosophy classes read an article on the ethics of factory-farmed meat, optionally watched an 11-minute video on the topic and joined a 50-minute discussion.

在四节大型哲学课上，一半学生阅读了一篇关于工厂化养殖肉类的伦理文章，非强制性观看了一段11分钟的视频，并开展了50分钟的讨论。

Optionally enter a type.

可以选择输入一个类型。

It optionally takes three argu we are pirates, these data are stolen from youdao s.

它可以有选择地带三个参数。