OK, I can certainly print out strings, but I can actually add strings together, and just as you saw, I can multiply strings, you can kind of guess what this is going to do.

当然我可以显示字符串，但是其实我还可以令字符串相加，如你所见到的，我可以令字符串相乘，你们可以想想答案是什么。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now, notice that if we accept this view to decide how well off I am, or somebody else is, you can't just add up the contents of the life.

请注意,如果用这种观点决定自己的幸福程度，或者其他人的幸福程度，你就不能单单把生活内容加起来。

耶鲁公开课 - 死亡课程节选

If you say, "Add the vectors, " I would just add the x to the x and the y to the y and I'm keeping track of what the sum is.

如果你们说 " 将矢量相加 ",我就把同为 x 轴方向的分量相加,同为 y 轴方向的分量相加,然后就能得出这两个矢量的和是多少了

耶鲁公开课 - 基础物理课程节选

If you want to add two vectors, you can add the arrows by the rule I gave you or just add the components of x of the two guys to get the component of the sum and likewise for the y.

如果要把两个矢量相加,你可以用我教给你们的箭头相接的方法,或者就将二者的 x 分量相加,得到和矢量的 x 分量,y 方向也是这样

耶鲁公开课 - 基础物理课程节选