auxiliary
/ɔ:gˈzɪlɪərɪ; ɔɡ`zɪlərɪ/ adj
giving help or support; additional 帮助的; 辅助的; 附加的; 副的
auxiliary troops 辅助部队
an auxiliary nurse 助理护士
an auxiliary generator in case of power cuts 万一断电时使用的备用发电机. auxiliary, n
1 [C] person or thing that helps 辅助的人或事物; 辅助者
medical auxiliaries 医疗辅助人员[设备].
2 auxiliaries [pl]
additional (esp foreign or allied) troops used by a country at war （尤指战时外国或同盟国的）援军.
3 [C] (also au,xiliary `verb) verb used with main verbs to show tense, mood, etc, and to form questions, eg do and has in Do you know where he has gone? 助动词（与主要动词连用表示时态, 语气等, 也用以构成问句, 如在Do you know where he has gone?句中的do和has）.