英语语法分析

In those days, dentistry was basic. Extractions were carried out without anaesthetic.

那时牙科学刚起步，拔牙是在没有麻药的情况下进行的。

《柯林斯英汉双解大词典》

You can do similar extractions by using BIRT (Business Intelligence and Reporting).

您可以使用BIRT(业务智能和报告)来做相似的获取工作。

For more complex extractions we may need to find several instances of these regions on a single page.

对于更复杂的抽取，我们可能需要在单个页面上找出这些区域的若干实例。