n.前渊，外枝准地槽，陆外渊...

The prototype of Zhoukou Cretaceous basin should be of foredeep basin.白垩纪周口盆地的盆地原型应是山前凹陷盆地....

foredeep的音标：foredeep的英式发音音标为：['fɔ:di:p]foredeep的美式发音音标为：['fɔdip]...