The countryside undulates pleasantly.原野起伏，景色宜人。The road undulates through pleasant scenery.那条道路在宜人的景色中延绵起伏.The price of steel and iron products and materials undulates fiercely on the current market.当今的市场,钢铁产品和原材料的价格上下波动...
There is still pain at bottom vertebra of the buttock!屁股处的尾椎骨还在一阵阵的痛!Objective To develop an intermittent type treatment instrument for cervical vertebra.目的:研制一种实用、有效的颈椎治疗仪.Thoracolumbar kyphoscoliosis occurred in only 1...