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
He has the advantage of a good education.
他有受过良好教育的优势。
Do you know any of those people?
你认识那些人吗？
There is a table in the middle of the room.
房间的中央有张桌子。