The sea erodes the rock.海水侵蚀岩石.The sea erodes the land.海洋侵蚀陆地.Improvement in terms of trade is limited as competition erodes price.由于竞争压低了价格,贸易条件的改善就受到限制....
他熟练地左一拐右一拐地绕过深沟，穿过了原野。Expertly he zigzagged his way across the field, avoiding the deeper gullies.原野起伏，景色宜人。The countryside undulates pleasantly.在一望无际的原野上散布着一座座井架.Derricks are scattered here and there on the boundless pl...