1. Martin sat frowning.
    马丁皱着眉头坐着。

2. Martin Seligman of the University of Pennsylvania advised the Metlife insurance company to hire a special group of job applicants who tested high on optimism, although they had failed the normal aptitude (才能) test.
    宾夕法尼亚大学的马丁·塞利格曼建议梅特莱夫保险公司雇用一批特别的求职者，他们经测试证实有很乐观的心态，虽然在一般能力测验上不及格。

3. Judith Martin, in her writings under the name of "Miss Manners", suggests the phrase, "Most honored sir or madam".
    朱迪斯·马丁在用笔名"礼仪小姐" 撰写的著作里建议这样称呼："尊敬的先生/夫人"。