1.global warming 全球變暖
The threat of global warming will eventually force the US to slow down its energy consumption.
全球變暖的威脅將最終迫使美國減緩能源消耗 。
2.vulnerable to 易受攻擊的
People with high blood pressure are especially vulnerable to diabetes.
有高血壓的人尤其易患糖尿病 。
3.cut down 削減
He cut down on coffee and cigarettes, and ate a balanced diet.
他喝咖啡和吸煙都比以前少了,飲食也均衡了 。