基本解釋[醫(yī)藥科學(xué)]維管束干英漢例句雙語例句a tree with branches but no trunk looks more like a bundle of twigs fallen on the floor一顆沒有樹干但是有很多分支的樹看起來更像是地板上的一捆樹枝bundle trunk更多例句詞組短語短語trunk atrioventricular bundle 釋義房室束干trunk of bundle of his 希斯束干bundle trunk更多詞組專業(yè)釋義醫(yī)藥科學(xué)維管束干