Ddh
abbr. diamond-drill-hole 金刚石钻钻孔; dichlorodimethylhydantoin 二氯二甲海因，二氯二甲基乙内酰胺
🗣️ 情景例句
Have you ever held a secretarial position?
你曾当过秘书吗？
I went bowling last night.
我昨晚在打保龄球。
My coat and my umbrella please.
请把我的大衣和伞拿给我。