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。
These can be used long term, have no side effects and are non-addictive.
这些可长期使用,没有任何副作用,无成瘾性。
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。
应用推荐