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
Excuse me, where can I find the shoe polish?
问一下，我到哪儿能买到鞋油？
Missing school to watch the football match is out of the question.
为看足球赛而旷课，那可不行。
First turn the gas off and cover the pan.
首先，把煤气关上，盖上油锅。