Donald Trump has spent much of his second term at war with science and scientists. He is cutting staff at institutions such as the Environmental Protection Agency (EPA) by a third, and has cancelled or frozen up to 8,000 federal research grants. This hasn’t just hurt individual research programmes, it has damaged America’s credibility as a reliable partner in the scientific community. It is not surprising that many researchers – one poll last year by the journal Nature gave the number of 75% – say they are considering leaving the US entirely.
（二）实际承运人，是指接受承运人委托或者转委托，从事旅客及其行李全部运输或者部分运输的人。
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坝河吸引着市民和游客前来打卡。 中国城市规划设计研究院供图