基本解释[生物学]维管束痕英汉例句双语例句Is your heart a closed bundle of scar tissue?你的心中是不是满是伤痕？When dead leaves break away, they leave behind waxy cells that form a small bud called a bundle scar.树叶掉下之后，留下一些细胞，形成一种被称作维管束痕的小牙。bundle scar更多例句词组短语短语leaf scar and bundle scar 叶痕和叶迹bundle scar更多词组专业释义生物学维管束痕