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
I just solved the mystery.
我刚刚把那个谜底解开了。
They are so busy these days, that they don't even have time for their friends.
他们最近忙得没法和朋友见面。
Yes, I am. How did you guess?
是。你怎么猜到的？