The gentleman, despite his advanced years, helped Kathryn back to her seat.这位绅士，尽管年事已高，仍然帮着凯瑟琳回到座位上。"Medicare" is available to victims of advanced kidney disease.老年医疗保险也适用于肾病晚期患者。The rebels have advanced to within 150 km...
The lab has recently been updated to allow for more advanced courses.实验室最近经过更新，可以上更高阶的课程了。...the most advanced optical telescope in the world.世界上最先进的光学望远镜Meanwhile , as spring advanced, the flowers in the seed ranch bega...
沙砾覆于铁质土层与砂砾层之上.Gravelly - sand over an iron - pan and gravel layer.小石头、砂砾层也可用来做隔绝层,以保持水分,降低土壤的温度.Pebbles and gravel also insulate the soil to keep surface temperatures low and preserve water.古河谷的边缘地带,往往缺失底部的河床相砂砾层.The ed...