The sap of this plant blisters the skin.
这种植物的汁液会使皮肤起水疱。
Also known as plant lice, aphids are tiny soft-bodied insects that suck the nutrient-rich SAP from the stems of plants.
蚜虫是一种很小的软体昆虫，以吸取植物枝干里的营养汁液为生，也被称为植物虱子。
As early as the first century AD , Pliny the Elder wrote that the sap of a tithymalus plant could be used to render a message invisible to prying eyes.
早在公元一世纪，罗马学者老普林尼写道：“用大戟树汁书写，字迹可以隐形。”
应用推荐