Definition: a part of an animal or plant that has a special purpose Level: C1
皮肤是保护身体免受伤害的外部器官。
The skin is an external ___organ that protects the body from harm.
她注册成为器官捐赠者，以便在死后拯救生命。
She registered as an ___organ donor to save lives after her death.
先进的医疗技术使得人体中几乎任何器官的移植成为可能。
Advanced medical technology enables the transplant of almost any ___organ in the human body.
