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.美索不达米亚的冲积平原非常适合生产高生量的食物。Bangkok is surrounded by a vast, damp, alluvial plain, crisscrossed by a network of klong.曼谷为一个广阔潮湿的冲积平原所环绕，有纵横交错的运河网。alluvial flat更多例句