What used to be a rare food additive is now a staple.

VOA: standard.2010.04.25

As you build these kinds of simulations, or anything like this, you need to think through whether things should be multiplicative or additive.

正如你建立各种仿真程序，或者类似的仿真程序时，你应该去想一想,他们应该是用加法还是用乘法。

麻省理工公开课 - 计算机科学及编程导论课程节选

What we are going to say is that the wavefunction for molecular orbitals is going to be an additive sum of the wavefunctions of atomic orbitals.

我想说的是,分子轨道的波函数,就是多个原子轨道,波函数的线性叠加。

麻省理工公开课 - 固态化学导论课程节选

So, and typically, we're not going to worry about those additive constants.

不是那些附加的常量,第二点是。

麻省理工公开课 - 计算机科学及编程导论课程节选