natural day
noun
1The period in which the earth turns once on its axis.
2The part of this period when the sun is up; = day.
Origin
Late Middle English; earliest use found in Geoffrey Chaucer (c1340–1400), poet and administrator.
| 单词 | natural day |
| 释义 | natural daynoun 1The period in which the earth turns once on its axis. 2The part of this period when the sun is up; = day. Origin |
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