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
Your car's very noisy. The muffler must be damaged.
你的车噪音真大，消声器一定出毛病了。
Do you offer FOB or CIF?
你们报船上交货价还是到岸价？
There is a fire burning in the fireplace, and the Christmas tree lights are shining brightly.
火在壁炉里熊熊燃烧，圣诞树的彩灯在交相交烁。