Root-canal
[医] 牙根管, [牙]髓管
🧩 词语组成解析
root
[rut]
n. 根，根源;原因，本质;祖先;[乐]和弦基音;
vt. 使生根;使固定;根源在于;欢呼，喝彩;
vi. 生根;根除;
🗣️ 情景例句
Welcome to China. May I have a look at your customs declaration?
欢迎来中国。我可以看一下您的入境申请报表吗？
The dinner was wonderful.
晚餐棒极了。
Alfred had learned many of their ballads in his youth,
阿尔弗德年轻时学过许多民歌，