voluntarily
🇺🇸
/ˌvɑːlənˈterəli/
🇬🇧
/ˈvɒləntrəli/
adverb
R
doing something because you want to, not because you have to
He voluntarily helped clean the park without anyone asking him.
他自愿帮忙打扫公园，没有人要求他这样做。
R
doing something without getting paid
She voluntarily works at the animal shelter without receiving any money.
她自愿在动物收容所工作，不收取任何报酬。
translation
自愿地, 无偿地