volunteer

n. 志愿者；志愿兵

adj. 志愿的

vi. 自愿

vt. 自愿

英文词源

volunteer: volunteer: [17] Volunteer comes via French volontaire from Latin voluntārius, a noun use of the adjective which gave English voluntary [14]. This was derived from the noun voluntās ‘will, free will’, which itself was based on volō ‘I will’ (source also of English volition).
=> volition
volunteer (n.): c. 1600, "one who offers himself for military service," from Middle French voluntaire, "one who volunteers," also as an adjective, "voluntary," from Latin voluntarius "voluntary, of one's free will," as a plural noun "volunteers" (see voluntary). Non-military sense is first recorded 1630s. As an adjective from 1640s. Tennessee has been the Volunteer State since the Mexican War, when a call for 2,800 volunteers brought out 30,000 men.
volunteer (v.): 1755, from volunteer (n.). Related: Volunteered; volunteering (1690s as a verbal noun).

1. Finding a volunteer to write the computer program isn't a problem.: 找个志愿者编这个计算机程序不成问题。

2. She was a volunteer, she hadn't had to be press-ganged.: 她是一个志愿者，不一定非是受人迫使的。

3. I will volunteer my daughters for helping the church sale.: 我会使自己的女儿自愿帮助教堂出售东西.

5. The Armed Forces could do away with conscription and go over to a volunteer system.: 军队可以废除强制服兵役制度而采取自愿入伍的形式。