Some of the caves were open to the surface through steep entryways or vertical shafts stretching up to 160 feet.
其中的一些洞穴通过陡峭的入口通道或立井通向地面，深达160英尺。
By contrast, vertical brand stretching involves a change in product formulae, packaging and pricing to reach a wider range of customers.
相反，纵向品牌延伸包括改变产品的配方、装和定价，以接近更多顾客。
Jumping is grasping the chance to get the quickest vertical speed and reasonable jumping angel with powerful pressing and stretching.
跳段是把握蹬伸时机，以强有力的蹬伸获取尽量大的垂直速度和合理的腾起角度。
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