That last one is a made-up language, or a constructed international auxiliary language, meaning it was designed to help people from different nations without a common tongue communicate. 最后一个世界语是一种虚构语言,或者说是构造出来的国际辅助语言(IAL),意思是这种语言的设计旨在帮助来自不同民族无法说同一种语言的人交流。