短语词组短語Petiole Sturdy 葉柄粗壯Petiole character 葉柄特征Petiole spot 小黑點病petiole explants 葉柄Petiole Sheathing 葉柄具鞘Petiole length 葉柄長;葉柄長度cotyledon petiole 子葉柄unifacial petiole 單麪葉柄secondary petiole [植]小葉柄 返回 petiole