organ
The larger part of an organism, composed of tissues that perform similar functions. / (by extension) A body of an organization dedicated to the performing of certain functions.
(athletics) In throwing sports such as javelin and shot put, a board on the ground, over which the thrower must not step.
plural of mole plough
An individual who explores man-made structures, often as a hobby.
心臓は血液を全身に送り出す臓器です。
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