| 单词 | exine |
| 释义 | exine /ekˈsin or -sīn/ see extineORIGIN: L ex out of extine /eksˈtin, -tēn or -tīn/ (botany)nounThe outer membrane of a pollen grain or spore (also exˈine) ORIGIN: From the root of L exter, extimus outer or outermost |
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