单词	phloem bundle
释义	phloem bundle 韧皮束
随便看	backward country backward creep backward cross talk backward crosstalk backward current backward curvature backward curve blade back ward-curved blade backward curved blade backward-curved blade fan backward-curved-blade fan backward curved fan blade backward curved vane backward-curved vane backward decay backward deduction system backward diagonal backward dictionary backward difference backward-difference backward difference function backward difference method backward difference operator backward differentiation method backward differentition method 伪伫伮伯估伲伴伶伸伹望江南望洋兴叹望烦望看望眼欲穿望砖望祈望空扑影望穿秋水望而却步