Root-canal preparation
[医] 根管制备
🧩 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
that you care about us.
关心我们大家。
Benefits please like flowers, while they are fresh.
恩泽让人欣喜，犹如鲜花使人心醉。
Mrs.Ramsay received an anonymous letter.
拉姆齐太太收到一封匿名信。