describe the most important development of country in the past 20\25 years.ibt口语题目
问题描述：
describe the most important development of country in the past 20\25 years.ibt口语题目
只需要写出回答的大致方向就可以了,用英语哦
答
the most important development of country in the past 20\25 yearswere > by ensuring that there were good access to clean water supply and sanitation (because clean water is essential for our survival ...