三十一、Leave much to be desired(令人不满意)
例句：The condition of our traffic leaves much to be desired.
我们的交通状况令人不满意。
三十二、Have a great influence on-(对……有很大的影响)
例句：Smoking has a great influence on our health.
抽烟对我们的健康有很大的影响。
三十三、do good to(对……有益)，do harm to(对……有害)
例句：Reading does good to our mind.
读书对心灵有益。
Overwork does harm to health.
工作过度对健康有害。
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。