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(单词翻译)
Well, they couldn’t survive the heat of a nuclear blast at ground zero, but their resistance to radiation may surprise you. In fact, most insects are much more resistant1 to ionizing radiation than mammals. Radiation is measured in units called Grays. Doses as low as three to six Grays were fatal to humans in Hiroshima and Chernobyl. By comparison, some adult cockroaches2 have survived doses up to nine-hundred Grays! That’s more than 150 times the lethal3 dose for humans!
收听单词发音
1
resistant
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| adj.(to)抵抗的,有抵抗力的 | |
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2
cockroaches
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| n.蟑螂( cockroach的名词复数 ) | |
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3
lethal
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| adj.致死的;毁灭性的 | |
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