Nominal addendum
[机] 标准齿冠
🧩 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
running for the school board.
竞选联合校董会董事。
By the hands of many a great work made light.
众擎易举。
has spent his lifetime studying active volcanoes and deep caves in all parts of the world.
花了毕生的精力来研究世界各地的活火山和探洞。