心脏是最重要的器官。
The heart is the most important organ.
(physiology) organ; apparatus
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Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
心脏是最重要的器官。
The heart is the most important organ.
器官移植救了很多病人。
Organ transplants have saved many patients.