三十四、Pose a great threat to ~~ (对......造成一大威胁)
例句:Pollution poses a great threat to our existence.
污染对我们的生存造成一大威胁。
三十五、do one‘s utmost to V = do one‘s best (尽全力去......)
例句:We should do our utmost to achieve our goal in life.
我们应尽全力去达成我们的人生目标。
