| 单词 | perfectly circular |
| 释义 | perfectly circular The path around it was almost perfectly circular, barely a yard wide, with steep drops on either side. Times, Sunday Times They are not meant to look perfectly circular. The Sun Sure, some roller coasters can loop-the-loop, but have you ever noticed it’s never perfectly circular? Retrieved from Wikipedia CC BY-SA 3.0 He was amazed by the slowly rotating, 10ft wide, perfectly circular object, which was stationary in the current close to where a stream joined the river. Times, Sunday Times These values are approximate, because (as mentioned above) the planets do not have perfectly circular, coplanar orbits. Retrieved from Wikipedia CC BY-SA 3.0 |
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