单词	irrotational
释义	irrotational adjective ir·​ro·​ta·​tion·​al ˌir-(r)ō-ˈtā-sh(ə-)nəl  1 : not rotating or involving rotation 2 : free of vortices irrotational flow Word History First Known Use 1875, in the meaning defined at sense 1
随便看	seed plow seed potato seed snipe seed stitch seed stock seed tick seed treatment seed tree seed vessel seed weevil seed-corn beetle seed-corn maggot seed-plot seed/seeds of one's own destruction seedage seedball seedbed seedbeds seedbird seedbox seedboxes seedcake seedcakes seedcase seedcases

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