1. 暴露;接触
    Exposure to something dangerous means being in a situation where it might affect you.

    e.g. 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。
    e.g. ...the potential exposure of people to nuclear waste.
           核废料对人们造成辐射的潜在风险

2. （身体）受冻
    Exposure is the harmful effect on your body caused by very cold weather.

exposure的近义词

    e.g. 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。
    e.g. At least two people died of exposure in Chicago overnight.
           昨天晚上，芝加哥至少有两人冻死。

3. 曝光;揭发;揭露
    The exposure of a well-known person is the revealing of the fact that they are bad or immoral in some way.

    e.g. ...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
    e.g. 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。

4. 报道；宣传
    Exposure is publicity that a person, company, or product receives.

    e.g. All the candidates have been getting an enormous amount of exposure on television and in the press.
           所有候选人都在电视和报刊上频频亮相。

5. 单张胶片
    In photography, an exposure is a single photograph.

    e.g. Larger drawings tend to require two or three exposures to cover them.
           较大的图画往往需要两三张胶片才能拍下来。

6. 曝光量
    In photography, the exposure is the amount of light that is allowed to enter a camera when taking a photograph.

    e.g. A tripod also lets you shoot long exposures at night.
           三脚架也可以让你在晚上长时间曝光。
    e.g. ...an exposure of 1/18sec at f/11...
           1/18秒f/11光圈的曝光量