The head of the US Food and Drug Administration has risked sparking a fresh conflict with Donald Trump over the timing of a coronavirus vaccine, after insisting his scientists would stick to a set of guidelines that the US president has threatened to overrule.
美國食品暨藥物管理局(FDA)局長可能與唐納•川普(Donald Trump)在關於新冠病毒疫苗的推出時機上發生新的衝突。他堅稱，該局的科學家將會堅守美國總統威脅要否決的一整套指引。
您已閱讀10%（352字），剩餘90%（3053字）包含更多重要資訊，訂閱以繼續探索完整內容，並享受更多專屬服務。