沟沟坎坎

拼音：

解释： 　难走的地方，比喻做事时所遇到的困难与障碍。

• DOCTYPE
• documentary
• Documentation
• DOD
• dodder
• dodecagon
• dodger
• Dodin
• dodolook
• DOD娃娃
• doer
• does
• Does happiness have a favorite sex?
• dog-end
• dogcart
• dogfight
• dogfish
• doggy
• doghouse
• dogmatic
• dogtrot
• dogwatch
• Dokken
• DOL
• Dolby Digital