1.global warming 全球变暖
The threat of global warming will eventually force the US to slow down its energy consumption.
全球变暖的威胁将最终迫使美国减缓能源消耗 。
2.vulnerable to 易受攻击的
People with high blood pressure are especially vulnerable to diabetes.
有高血压的人尤其易患糖尿病 。
3.cut down 削减
He cut down on coffee and cigarettes, and ate a balanced diet.
他喝咖啡和吸烟都比以前少了,饮食也均衡了 。