You have to spend that amount of time. You do not want to spend x-plus.

移臂当然要花时间，但你并不想花额外的时间。

youdao

We can write out what it is for any certain atom or ion x, X so it's just x plus an electron gives us x minus.

我们可以用，X，来表示一个任意的原子或离子，因此可以写成，X，加一个电子等于负一价的。

youdao

Namely, we will be saying the /a normal vector is x, y, z over a, plus or minus depending on whether we want it pointing in or out.

我们容易知道,法向量为，正负号取决于它是指向外面还是里面。

youdao

Remember, we don't do a one-to-one correlation, because p x and p y are some linear combination of the m plus 1 and m minus 1 orbital.

记住，我们不需要把它们一一对应，因为ｐｘ和ｐｙ轨道是,ｍ等于正负１轨道的线性组合。

麻省理工公开课 - 化学原理课程节选

It's still 1, because you plus plussed the wrong symbol called X. So for now, take-away from this, don't do this.

它还是1，因为你自增的是那个错误的叫做X的符号,现在，拿走这个，不这样做。

哈佛公开课 - 计算机科学课程节选

x = 0 plus-- What's the horizontal velocity?

= 0 加上,水平方向的速度是多少

耶鲁公开课 - 基础物理课程节选

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