The head of the World Health Organization has called for further investigation into the origins of the coronavirus pandemic after the report on its mission to Wuhan left important questions unanswered.
世界衛生組織(WHO)負責人呼吁進一步調查新型冠狀病毒肺炎（COVID-19，即2019冠狀病毒?。┮咔槠鹪?。此前，該組織赴武漢考察團得出的報告沒有回答一些重要問題。
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