voluntary

中文意思

n. composition (often improvised) for a solo instrument (especially solo organ) and not a regular part of a religious service or musical performance
adj. of your own free will or design; done by choice; not forced or compelled
adj. controlled by individual volition

adj. 自愿的
Attending the evening study session is completely voluntary, so you can go home early if you want.
参加晚自习完全是自愿的，所以如果你想早点回家也可以。
adj. 自发的
Blinking is usually an involuntary action, but you can also make a voluntary blink when asked.
眨眼通常是非意识肌肉运动，但当被要求时，你也可以做出自发的眨眼动作。
n. 志愿者
Many young voluntaries joined the community service team to help clean up the local park.
许多年轻志愿者加入了社区服务队，帮忙清理当地公园。
n. 自愿行动
Donating a portion of his salary to the charity every month was a purely personal voluntary.
每月将自己的一部分工资捐给慈善机构纯粹是他个人的自愿行动。
n. 即兴器官独奏
The organist played a beautiful voluntary at the end of the Sunday church service.
风琴演奏家在星期日礼拜结束时演奏了一曲优美的即兴器官独奏。