英语语法分析

If you are a student, you can omit questions 16–18.

学生可以免做16–18题。

《牛津词典》

There are as many textbooks that omit it as a type of movement as include it.

也有不少课本没有把它包括在冰川移动的一种类型里。

Omit dull and ineffective generalities and make sure you give concrete examples.

避免枯燥、无效的空谈，并确保你给出了具体的例子。