常見(jiàn)例句The stem is reduced to a disklike structure, bearing concentric layers of fleshy leaf bases that comprise the food store.由許多肥厚的肉質(zhì)鱗葉包圍扁平或圓盤(pán)狀的地下莖，其中儲(chǔ)藏著大量的營(yíng)養(yǎng)物質(zhì)。 返回 scale leaf