boil it down to浓缩成
boil down syrup熬浓糖浆
boil the liquid down把液体煮得蒸发掉一些
boil down to something善于总结;归根结底为
boil down an article把文章压缩
boil down into归根结底是
Boil down medicinal herbs煎中草药
Boil Down To One归结为一条
Additional boil down distillation附加的快速蒸馏箱
V（动词） to reduce or be reduced in quantity and usually altered in consistency by boiling 煮浓
to boil a liquid down to a thick glue