boil down

基本解释

Ultimately, the issues boil down to performance.
最终，这些问题都归结到性能。
These units boil down to number, weight, or volume.
这些单位都归结为数字，重量或者体积。
If we have any doubt, it may all boil down to whether there is problem in international monetary system and whether this problem should be solved from this point of view.
如果我们有意见的话，可能最后还要归结到当前的国际货币体系是否存在问题，是否需要从这个角度来解决这个问题。

You are going to take this entire issue and boil it down to 30 second ads."
Selection sort too really reduces to a total number of comparisons because I'm again comparing the current smallest to the next thing I see, the next thing, so really a lot of these sorting algorithms boil down to comparisons and the numbers that you actually have to make.
选择排序也可归纳为总数的比较,因为要将当前最小者与下一个进行比较,接着再下一个，可见,很多排序算法都可归结为比较,以及需要比较的次数。
哈佛公开课 - 计算机科学课程节选
That's what it's all going to boil down to.
这就是这节课的最重要的要求
耶鲁公开课 - 基础物理课程节选

They boil down to this: We exclude brokerage costs because we've always excluded brokerage costs.
FORBES: Hidden Expenses

to reduce or be reduced in quantity and usually altered in consistency by boiling