Steves English is better than Tom;Steve is from the English Dept while Tom majors in Physics.This is like comparing apples to oranges.

• （译文：斯迪夫的英语比汤姆好，前者是英语专业的，后者的专业是物理，不同类的事物不具可比性，正如苹果和桔子不具可变性一样;