单词	back bulb
释义	back bulb noun : a pseudobulb on certain types of orchid plants that remains on the plant after the terminal growth has been removed and is used in the propagation of certain orchids Word History First Known Use 1942, in the meaning defined above
随便看	blue devils blue dicks blue discharge blue disease blue doe blue dog blue dogwood blue duck blue duiker blue earth blue elder blue elderberry blue ensign blue false indigo blue fescue blue field madder blue fig blue flag blue flax blue flier blue flower blue flu blue fox blue from the cold blue gall

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