global warming关键词3分钟英语演讲
问题描述：
global warming关键词3分钟英语演讲
给定关键词,global warming(全球气候变暖),要3分钟的英语演讲,短句,长句都可,或者写几句中文的也行,笔者可以自己翻译,保证不会照抄您的答案的,笔者希望借此拓展下思路,
答
global warmingGlobal warming is when the earth heats up (the temperature rises).It happens when greenhouse gases (carbon dioxide,water vapor,nitrous oxide,and methane) trap heat and light from the sun...