ecological protection短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 生态保护 The forest-worship of the Dais did have positive effects onecological protection.傣族的山林崇拜对生态保护具有积极意义。 Natural grassland is rationally utilized and the active grasslandecological protectionis effective.天然草地得到合理利用,草原生态保护积极有效。