O.d.
abbr. oute rdiameter 外径
🗣️ 情景例句
Oh, leaving home is part of growing up.
呵 ，离开家是成熟过程的一部分。
Quality matters more than quanity.
质量比数量重要。
There are many things to be learnt when you start working.
开始工作时，你有许多东西要学。