A device for recording the movements of an animal, a sleeping person, or a fetus.
| 单词 | θ43720 |
| 释义 | the world > animals > zoology > [noun] > equipment (2) actograph1920 A device for recording the movements of an animal, a sleeping person, or a fetus. activity wheel1929 = exercise wheel n. at exercise, n. additions. |
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