题目内容

Pose a great threat to ~~ (对...造成一大威胁)

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There is no doubt that + 句子~~ (毫无疑问的...)

do good to (对...有益)，do harm to (对...有害)

It is universally acknowledged that + 句子 (全世界都知道...)

do one’s utmost to + V = do one’s best (尽全力去...)