1. 归结为：9. indiscriminate 不加鉴别的,不加分析的,任意的 | 10. boil down 归结为...... | 1. devoid 没有,缺乏
2. 熬浓：boil down to 归结为 | boil down 熬浓 | boil over 沸溢
3. 蒸浓：Bohr's magneton 玻尔磁子 | boil down 蒸浓 | boil over 喷溢出储罐四周
4. 蒸浓; 煮浓 摘要 显示：boil clear 制造肥皂时煮去多余的水分 | boil down 蒸浓; 煮浓 摘要 显示 | boil down to 归根结底是, 减缩成; 概括成
1. （液体或食物）煮稠；把…熬稠
When you boil down a liquid or food, or when it boils down, it is boiled until there is less of it because some of the water in it has changed into steam or vapour.
e.g. He boils down red wine and uses what's left...
他把红酒熬稠后再用。
e.g. This may seem a large quantity of mushrooms, but they do boil down considerably.
这些蘑菇看上去很多，但一煮就没多少了。
verb
1. cook until very little liquid is left
e.g. The cook reduced the sauce by boiling it for a long time
Synonym: reduceconcentrate
2. be cooked until very little liquid is left
e.g. The sauce should reduce to one cup
Synonym: reducedecoctconcentrate
3. be the essential element
e.g. The proposal boils down to a compromise