boil sth. down uk /bɔɪl/ us /bɔɪl/ "Boil (something) down" 是一个英语短语，它的字面意思是通过加热让液体蒸发，变得浓稠。后引申为将复杂的事情或信息进行简化，精炼或浓缩为核心或关键部分。 例句： 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。 The report was too long, so I had to boil it down to a one-page summary. 这份报告太长了，我得把它浓缩成一页的总结。