deciduous tree of the Amazon and Orinoco Rivers having leathery leaves and fragrant yellow-white flowers; it yields a milky juice that is the chief source of commercial rubber
para rubber tree的用法和样例:
例句
The workers tapped the rubber trees. 工人们割橡胶树皮采胶液。
A cicada sat at the base of the gum tree. 有只蝉在橡胶树下面。