| 单词 | primary rainbow |
| 释义 | primary rainbownounthe most commonly seen rainbow, formed by light rays that undergo a single internal reflection in a drop of water. Compare secondary rainbow. Origin of primary rainbowFirst recorded in 1785–95 Words nearby primary rainbowprimary processes, primary producer, primary pulmonary lobule, primary qualities, primary quality, primary rainbow, primary reaction, primary root, primary school, primary sex characteristic, primary spermatocyte Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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