auxiliary
adj. 辅助的；备用的，后备的
n. 助手，辅助人员；外国援军士兵，雇佣兵；附属机构；志愿队；辅助舰船；助动词
复数 auxiliaries
例句
Esperanto was invented as an auxiliary language.
世界语是作为辅助语发明的。
《牛津词典》
Esperanto is an artificial language, designed to serve internationally as an auxiliary means of communication among speakers of different languages.
世界语是一种人造语言，目的是充当国际上不同语言使用者之间交流的辅助手段。
The government's first concern was to augment the army and auxiliary forces.
政府首要关注的是扩充军队与后备军。
《柯林斯英汉双解大词典》
