B. Correct or improve the translation of the following Chinese sentences
原文：专家提醒说，雾对人体健康的危害有很大的隐蔽性。译文：Experts caution that fog has great concealment of harmful effect on our health.改译：
【正确答案】：
EXPERTS CAUTION THAT THE HARMFUL EFFECT OF FOG ON OUR HEALTH IS OFTEN CONCEALED.
【题目解析】：Experts caution that the harmful effect of fog on our health is often concealed.考点：动词短语“有……隐蔽性”的准确翻译。