基本解释[生物學]附著根[地球科學]支柱根英汉例句雙語例句It is anchored to the ocean floor by a root-like structure called a holdfast.一種類似樹根的結搆使它緊緊吸附在大洋底部。blog.sina.com.cnholdfast root更多例句专业释义生物學附著根地球科學支柱根