Sap 1. The solution of mineral salts and sugars that is found in xylem and phloem vessels and oozes out of cut stems.

• 树液：1.；是植物木质部与韧皮部管状分子中存在的含多种无机盐与碳水化合物的混和溶液，可以从植物茎上的切口处渗出。