service programs短语⁶¹⁸⁴⁰ 基本例句 🌏服务方案；服务项目原型serviceprogram的复数 I encourage all Americans to participate in service programs and activities that will protect our environment and contribute to a prosperous, healthy, and sustainable future. 我敦促所有美国人参与环保服务与活动，并为建设一个繁荣、健康、可持续的未来贡献力量。 putclub