基本解釋[生物學(xué)]葉瘤英漢例句雙語(yǔ)例句Root nodule appears on roots as soon as seedlings have the second real leaf.幼苗長(zhǎng)出第二片真葉時(shí)根部出現(xiàn)根瘤。leaf nodule更多例句專業(yè)釋義生物學(xué)葉瘤