auxiliary

柯林斯詞典

1. ADJ Auxiliary equipment is extra equipment that is available for use when necessary. 備用的[ADJ n]
...an auxiliary motor. …一臺備用的發(fā)動機。
2. ADJ Auxiliary staff and troops assist other staff and troops. 后備的[ADJ n]
The government's first concern was to augment the army and auxiliary forces. 政府首要關注的是擴充軍隊與后備軍。
3. N-COUNT An auxiliary is a person who is employed to assist other people in their work. Auxiliaries are often medical workers or members of the armed forces. 助手
Nursing auxiliaries provide basic care, but are not qualified nurses. 助理護士們提供基本護理，但沒有護士資格。
4. N-COUNT In grammar, an auxiliary or auxiliary verb is a verb that is used with a main verb, for example, to form different tenses or to make the verb passive. In English, the basic auxiliary verbs are "be," "have," and "do." Modal verbs such as "can" and "will" are also sometimes called auxiliaries. 助動詞