1、desperate

（因绝望而）孤注一掷的，铤而走险的，拼命的

Troops are needed to help get food into Kosovo where people are in desperate need.

需要军队帮助将科索沃人民亟需的食品送抵那里。

Desperate with anxiety, Bob and Hans searched the whole house.

焦急万分的鲍勃和汉斯把整座房子找了个遍。

极需要的;渴望的

They'd been married nearly four years and June was desperate to start a family.

他们结婚已快4年了，琼非常渴望要个孩子。

People are desperate for him to do something.

人们极希望他能做点什么。

极困难的;极严重的;极危险的

India's United Nations ambassador said the situation is desperate.

印度驻联合国大使说形势非常危急。

I decided not to abandon John when he was in such a desperate position.

我决定不在约翰走投无路的时候抛弃他。

2、poison

毒物；毒药；毒素

Poison from the weaver fish causes paralysis, swelling, and nausea.

龙的毒素会引起瘫痪、肿胀和恶心。

Mercury is a known poison.

水银是一种已知的有毒物质。

破坏，污染（水、空气或土地）

the textile and fibre industries that taint the air, poison the water and use vast amounts of natural resources.

污染空气、破坏水源并消耗大量自然资源的纺织纤维工业

The land has been completely poisoned by chemicals.

土地已被化学品彻底污染。