摘要：
Howimportantat hingitistokeepourpromise!遵守诺言是多么重要的事!29.Leavemuchtobedesired（令人不满意）例句:Theco... How important a thing it is to keep our promise!
遵守诺言是多么重要的事!
29. 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.
30. 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.
31. 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.
32. pose a great threat to ~~ （对...造成一大威胁）
例句:Pollution poses a great threat to our existence.
