| 单词 | ephemeropteran |
| 释义 | ephemeropteran (extremely rare) n WORD FAMILY ephemeropteran n short-lived insect Syn|Hypo|Hyper ephemerid Plectophera in some former classifications: name for the Ephemeroptera dayfly, mayfly, shadflyslender insect with delicate membranous wings having an aquatic larval stage and terrestrial adult stage usually lasting less than two days insect small air-breathing arthropod |
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