要获得此X ML文档，我们需要访问数据库，取出相关数据，并使用php在此xml文档中设定格式。

To get this XML document, we would have accessed our database, pulled out the relevant data, and used PHP to format it in this XML document.

youdao

生物技术所擅长的是从某种生物(比如人类)中提取出基因并将其植入另一种生物(以酵母菌为例)，从而艰难地获得大量所需的蛋白质。

Biotechnology is good at taking genes from one organism (a human being, for example) and sticking them into another (yeast, say) in order to churn out large amounts of a desirable protein.

youdao

系统通常只意识到当前的日期和时间，所以让计算机从当前日期中提取出出生日期来获得年龄值是一件微不足道的事。

The system is always aware of the current date and time, so it's a trivial thing for the computer to subtract a birth date from the current date to get an age value.

youdao