O.d.
abbr. oute rdiameter 外径
🗣️ 情景例句
Do you ever think about other people?
你从来就不考虑考虑别人吗？
Let difficulties occur but not the loss of courage.
纵使困难重重，也不丧失勇气。
We'll have to talk this over some more.
这件事我们得好好地再谈一谈。