O.d.
abbr. oute rdiameter 外径
🗣️ 情景例句
Would you like to join me for lunch?
跟我一起吃午餐吗？
She gaped in surprise when Robert arrived.
当罗伯特来的时候，她吃惊得长大嘴巴呆住了。
Sally was amused, but I was very embarrassed!
萨莉感到很有趣，而我却很尴尬。