这些年来，他已经在外交事务方面表现出一定的预见性。Over the years he's demonstrated a certain prescience in foreign affairs.瑞典人通过秘密的外交手段来争取他的自由。The Swedes had sought his freedom through quiet diplomacy.双方都愿意看到外交关系的正常化。The two sides would lik...
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...