Addendum line
[机] 齿冠线
🧩 词语组成解析
addendum
[ə'dendəm]
n. 附加物;补遗;附录;<机>（齿轮的）齿顶（高）;
line
[laɪn]
n. 线条;排;行列;界线;
vt. 排队;用线标出;沿…排列成行;给…安衬里;
vi. 形成一层;排队;击出平直球;
🗣️ 情景例句
My paper work will wait.
文书工作可以缓一缓。
It is a good horse that never stumbles.
良马不失蹄。
The nurse assisted the doctor in the operating room.
护士在手术室协助医生动手术。