This type of tongue , also present in frogs and toads, is called an extensile tongue.这种青蛙和蟾蜍也有的舌头叫做伸缩舌头....

extensile的音标：extensile的英式发音音标为：[eks'tensaɪl]extensile的美式发音音标为：[ɪk'stensəl]...

adj.可伸出的，可延展的...