Addendum circle
[机] 齿冠圆
🧩 词语组成解析
addendum
[ə'dendəm]
n. 附加物;补遗;附录;<机>（齿轮的）齿顶（高）;
🗣️ 情景例句
and we'll go out to dinner.
然后我们到外面吃晚饭。
If it's not too much trouble, I would like some help.
如果你不嫌麻烦的话，我想请你帮个忙。
She spent a lot of money on books.
她花了很多钱来买书。