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。