If you knew only the third derivative of the function, you can have something quadratic in t without changing the outcome.

如果方程里有三阶导数,你就可以引入一个二次项,但是结果却不会变

耶鲁公开课 - 基础物理课程节选

Everyone knows from calculus that if you're trying to find a function about which you know only the derivative, you can always add a constant to one person's answer without changing anything.

学过微积分的人都知道,如果你想根据已知的导数,求出其原函数,你总是可以给某人的答案,随便加一个常数,且不影响结果

耶鲁公开课 - 基础物理课程节选

First, if you receive a mandatory E-verify bill only without legalization, are you planning to veto that deal?

WHITEHOUSE: President Obama News Conference

"There's only so many Tauruses you can sell without doing something to a few of them, " says David Emerson, Adesa Indianapolis' auction manager.

FORBES: On the Block

How can one reconfigure these large sites without it being fortified when you only have one single internal space, and how do you deal with shopping?

FORBES: Architect Zaha Hadid On China: "There Are So Many Potential Projects Here"