auxiliary

中文意思

adj. 辅助的
The hospital hired extra staff to provide auxiliary medical support during the flu season.
这家医院聘请了额外的工作人员，以便在流感季节提供辅助医疗支持。
adj. 备用的
When the main power supply failed, the auxiliary generator started automatically.
主电源发生故障时，备用发电机自动启动了。
n. 辅助者
She joined the police auxiliary to help manage crowd control during large events.
她加入了志愿警察队伍，作为辅助者帮助管理大型活动期间的人流。
n. 助动词
In the sentence 'She is reading', the word 'is' acts as an auxiliary.
在句子“She is reading”中，“is”这个词用作助动词。