慢速英语:新血液检查发现致命皮肤癌

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detect – v. to discover or notice the presence of (something that is hidden or hard to see, hear, taste, etc.)

trial – n. a test of the quality, value, or usefulness of something

diagnose – v. to recognize a disease, illness, etc., in (someone)

ultraviolent – adj. used to describe rays of light that cannot be seen and that are slightly shorter than the rays of violet light

radiation – n. energy that comes from a source in the form of waves or rays you cannot see

ozone – n. a form of oxygen that is found in a layer high in the earth's

take advantage of – verbal phrase to use to advantage : profit by

accuracy – n. freedom from mistake or error