Narrowing your criteria, for example, may work against you: “Every time you answer a question you eliminate a possibility.” says one expert.

　　①With thousands of career-related sites on the Internet, finding promising openings can be time-consuming and inefficient.

　　②Search agents reduce the need for repeated visits to the databases.

　　③But although a search agent worked for Redmon, career experts see drawbacks.

　　④Narrowing your criteria, for example, may work against you: “Every time you answer a question you eliminate a possibility.” says one expert.

　　参考译文：

　　①(原因)互联网上有成千上万个与职业相关的网站，寻找有前途的职位既费时又低效。

　　②(结果)搜索代理减少了人们重复访问数据库的需要。

　　③(转折)但是，尽管这种搜索代理对雷德曼有用，求职专家却发现了一些缺点。

　　④(具体：分)例如，限定个人的求职标准可能会对自己不利:“每回答一个问题，你就排除了一个可能性”一位专家说。