He took my hand to help me over a boulder that blocked the way.他牵着我的手带我爬过那块挡道的卵石。A flowing stream inarms a boulder in its passing.流水围绕大石流过去....a huge boulder with rare ferns growing in every crevice.裂缝中全长着罕见蕨类植物的巨石Roger ...
He got up to strut his stuff on the dance-floor.他起身到舞池里炫耀自己的舞技。Two features of folds in stratified rocks that contain strut members invite special attention.包含在承压岩层内的成层岩石中的褶皱,有两个特点引人特别注意.Strut of cell of tube wall endode...