单词	sapwood
释义	sapwood /ˈsapwʊd / noun [mass noun] The soft outer layers of recently formed wood between the heartwood and the bark, containing the functioning vascular tissue.The beetles lay their eggs in trees and the resulting larvae bore into the wood, feeding on the tree's cambium, sapwood, and heartwood and impeding the movement of water and nutrients through the tree.... They're a nice, knot-free heartwood, meaning that there's no outer layer of sapwood on it. Redwood beauty is typified by rich cinnamon-colored heartwood, cream-colored sapwood, distinctive grain and performance that keeps projects looking good for years.
随便看	be sick beside beside oneself beside (or off) the point besides beside the point besiege besiegement besieger be simplicity itself be sitting pretty be skin and bone besmear besmirch be snowed under be so good as (or be good enough) to do something besom be someone's doing be someone's (or the) man be sorry to say besotted besought bespangle bespatter bespeak

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