voluntary
🇺🇸
/ˈvɑːlənteri/
🇬🇧
/ˈvɒləntri/
done because you want to, not because you have to
She made a voluntary decision to help.
她自愿决定提供帮助。
done without pay, by choice
He does voluntary work at the hospital.
他在医院做志愿工作。
working without pay, by choice
The shelter relies on voluntary helpers.
庇护所依赖志愿者的帮助。
able to be controlled
Breathing is mostly voluntary.
呼吸大多是自主控制的。
music played in church, often on an organ
The organist played a voluntary.
管风琴师演奏了一首即兴曲。