Dxf
abbr. diagram interchange file 图形交换文件; digital exchange format 数字交换格式
🗣️ 情景例句
I'm most grateful to you for taking so much trouble to explain the best way of getting there.
你不厌其烦地给我解释去那里的最佳途径，我对些深表感激。
Don't fly till you wings are feathered.
羽毛未丰不要飞。
And now I'm telling you I can't manage this Friday.
我正要告诉你我星期五没办法（出来）。