A group of natural objects moving in relation to one another under the laws of nature; (Astronomy) a group of celestial objects interacting by…
| 单词 | θ359 |
| 释义 | the world > the universe > heavenly body > [noun] > group (1) system1665 A group of natural objects moving in relation to one another under the laws of nature; (Astronomy) a group of celestial objects interacting by… |
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