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词汇	annual ring
释义	annual ringn.Botany（名词）【植物学】annual ringcross section of aDouglas fir tree The layer of wood formed in a plant during a single year. Annual rings appear concentric when viewed in cross section.年轮：一年里树木长出的层。从截面上看年轮呈同心圆状
随便看	Zorrilla y Moral zoster zosters Zouave Zouaves zouk zouks zounds zoysia zoysias Zp Z particle ZPG Zr zs zs z's Z score zsec Zsigmondy zucchetto zucchettos zucchini zucchinis Zugspitze

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