西维吉尼亚州上空的云洞。
确切的说，西斯科看到原子粉碎者在二号地球上，通过最后打开的虫洞与他们的世界联系起来。
Specifically, Cisco sees the Atom Smasher within Earth-Two, which intersected with their world through the wormhole that opened in the finale.
莫理：卡西，这地方跟八仙洞有任何关系吗？
Morley: Kathy, is this place at all related to Pahsien Cave?
文章以郑西铁路客运专线函谷关隧道横洞挑顶为例，介绍了一种新型挑顶施工工艺——垂直挑顶法。
Taking the cross cave propping in Hanguguan Tunnel of passengers special line on Zhengxi railway, this paper introduces a new construction technique of propping - vertical propping method.
远远要比这个难以抉择的就是放弃卡西和罗斯。而卡西曾是英格兰世界比洞锦标赛冠军，以及亚利桑那州比洞赛锦标赛两次亚军。
Far tougher was having to leave off Rose and Casey, who has won the World Match Play Championship in England and twice was runner-up in the Match Play Championship in Arizona.
西塔钻过了墙下方的一个浅洞。
西塔钻过了墙下方的一个浅洞。
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