voluntarily
adv
1 without compulsion; willingly 自愿地; 自动地; 主动地.
2 without payment; free of charge 志愿地; 无偿地; 义务地.
🗣️ 情景例句
Yes, most of them are, except for the plastic parts.
对,除了塑料制品其他都是。
Won't you have a bit of this cake?
请尝一点蛋糕吧!
And why only snakes? Cats, for instance, would be greatly helped; no running fights with large, fierce rats or tussles with grown rabbits -- just a bite and no more effort needed.