Koj xav tias lub tsev ua los vov thiab khwb lub chaw tsim hluav taws xob Chernalbyl nuclear power plant ntawm teb chaws Ukraine puas yuav daws tau tej teeb meem uas cov nuclear radiation twb kis mus rau cov teb chaws Europe los tau 30 xyoo no lawm?
Koj xav tias lub tsev ua los vov thiab khwb lub chaw tsim hluav taws xob Chernalbyl nuclear power plant ntawm teb chaws Ukraine puas yuav daws tau tej teeb meem uas cov nuclear radiation twb kis mus rau cov teb chaws Europe los tau 30 xyoo no lawm?
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