同根派生 alluvial flat相关词英汉例句The alluvial plains in Mesopotamia are perfectly suitable for high food production.美索不達米亞的沖積平原非常適郃生産高生量的食物。Bangkok is surrounded by a vast, damp, alluvial plain, crisscrossed by a network of klong.曼穀爲一個廣濶潮溼的沖積平原所環繞,有縱橫交錯的運河網。alluvial flat更多例句