catkin [ˈkætkɪn]

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附加级

柔荑花序

Overdominance or heterosis for catkin length in interspecific crosses has been reported. 栗树种间杂交在？谲杌ㄐ虺ざ壬纤？表现的超亲（或杂种优势）已报道了。来自辞典例句