奥巴马说，其他国家如今开始在追求这一代的伟大发现上抢到了前头。
'Other countries are now beginning to pull ahead in the pursuit of this generation's great discoveries,' Mr. Obama said.
奥巴马说，其他国家如今开始在追求这一代的伟大发现上抢到了前头。
'Other countries are now beginning to pull ahead in the pursuit of this generation's great discoveries,' Mr. Obama said.
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