词汇	Black soil ecosystem
释义	Black soil ecosystem 黑土生态系统
随便看	conventional practice conventional practice ability conventional prejudice conventional price conventional printing process conventional procedure conventional process conventional processing conventional processing craft conventional product conventional program conventional programming conventional programming language conventional programming method Conventional project conventional projection conventional projections conventional prompt global strike system conventional propellant conventional propellant loading system conventional propeller conventional property system conventional propositional logic conventional prospective touch voltage limit conventional prosthesis