基本解释[生物学]附着根[地球科学]支柱根英汉例句双语例句It is anchored to the ocean floor by a root-like structure called a holdfast.一种类似树根的结构使它紧紧吸附在大洋底部。blog.sina.com.cn专业释义生物学附着根地球科学支柱根