1.
of one's own volition
出于自愿地,自动自发地
2.
I did it of my own free will.
我是出于自愿做的。
3.
He did it of his own will.
他做这事是出于自愿。
4.
He did that of his own motion.
他出于自愿做了那事。
5.
do sth out of choice
出于自愿做某事物.
6.
We prefer you to work voluntarily rather than by coercion.
我们宁愿你工作出于自愿,而不是被迫。
7.
I didn't ask him to go;he went of his own volition.
我没有要求他去，他是出于自愿的。
8.
Contributions are purely optional.
捐献完全是随意 [出于自愿] 的。
9.
He went of his own accord-vanished in the night.
他走是出于自愿--在夜里失踪了。
10.
Nigel helped me of his own free will.
奈杰尔帮助我是出于自愿。
11.
Black people were the only "immigrants" who didn't choose to come to America.
黑人是唯一非出于自愿而到美国来的"移民".
12.
Our ideal of the future is that she should continue to render that service of her own free will.
我们最理想的前途是，美国将继续出于自愿提供这种服务。
13.
She acted of her own free will. What she would do she did and made nobody responsible.
她这样做完全出于自愿，她想怎么做就怎么做，谁也管不着。
14.
of one's own free will
出于某人的自由意志,自愿地,自动地
15.
by [ of ] one's own volition
出于本人自已的意志, 自愿
16.
Did you Come here of your own free will?
你来这儿是出于你自己的个人意愿吗？
17.
We are the best and we do it for free
我们全是出类拔萃的，今天所以这样，也会是出于自觉自愿，不求报偿。
18.
Attendance is purely voluntary.
这次出席纯粹是自愿的.