1.chain n. 链子,链条;连锁,连续
例句:The effect was to disrupt the food chain, starving many animals and those that preyed on them.
其结果就是破坏食物链,使很多动物和那些以捕食它们为生的动物饿死 。
2.raise v. 筹集;提升;增加;养育
例句:The oil shortages could lead the government to raise prices before the New Year.
石油短缺有可能导致政府在年前提高油价 。