Functional languages have no side effects.
函数性编程没有副作用。
That is, they should have no side-effects.
就是说不能有副作用。
It can see that these operations have no side effects.
或者可以说,这些操作没有边界效应。
Another side effect if you take too much lithium is death, so that's no good to have in sodas either, and it might not have been as big a deal back in the 1920's, but you can imagine with supersizing today, this might be a bigger problem.
另一个副作用是因为摄入锂过量而死,这更说明在汽水里放这种东西是不好的,这在二十世纪二十年代可能没什么大问题,但你可以想象在如今这个什么都超标的时代,这也许会出更大的问题。
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