good-for-naught

基本解释

• a.没有用处的；游手好闲的；无价值的
• n.游手好闲的人；饭桶；无用的人
• [经] 无价值的.

同根派生

英汉例句

• I hope that all your effort will not go for naught.
  我希望你的努力不会毫无结果。
• A bowl of hot chicken soup is good for you.
  喝一碗热鸡汤对你有好处。
• I hope that all your efforts won't go for naught.
  我希望你的努力不会毫无结果。
• Fresh air and exercise are good for the health.
  新鲜空气和运动有益于健康。
• Whisky can be good for you if taken in moderation.
  威士忌酒如饮用适度是有益的。