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1、exposure
暴露;接触
Exposure to lead is known to damage the brains of young children.
众所周知，接触铅对幼儿的大脑有害。
the potential exposure of people to nuclear waste.
核废料对人们造成辐射的潜在风险
（身体）受冻
He was suffering from exposure and shock but his condition was said to be stable.
他被冻伤了，而且出现了休克，但是据说情况稳定。
At least two people died of exposure in Chicago overnight.
昨天晚上，芝加哥至少有两人冻死。
曝光;揭发;揭露
the exposure of Anthony Blunt as a former Soviet spy.
安东尼·布伦特前苏联间谍身份的曝光
Their sporting reputation has suffered enormously from Johnson's exposure.
由于约翰逊东窗事发，他们的体育声誉受到了严重损害。
2、contribute
(为…)做贡献
The three sons also contribute to the family business.
这3个儿子也为家族事业做出了贡献。
I believe that each of us can contribute to the future of the world.
我相信我们每一个人都能够对世界的未来有所贡献。
捐献;捐助;援助
The US is contributing $4 billion in loans, credits and grants.
美国将提供40亿美元的信贷和赠款。
They say they would like to contribute more to charity, but money is tight this year.
他们说他们很想捐献更多的钱支持慈善事业，但是今年的钱非常紧张。
促成;促使；是导致…的原因之一
The report says design faults in both the vessels contributed to the tragedy.
报告说两艘船存在的设计缺陷也促成了这场悲剧的发生。
Stress, both human and mechanical, may also be a contributing factor.
来自人的和机械方面的压力可能也是一个因素。
