When these approaches were first introduced, many pundits insisted you needed to be a rocket scientist to pull it off, and while not trivial today, high-quality frameworks have helped the cause.
这些方法最初引入时，许多专家认为只有业内行家才能掌握，尽管现在并没有变简单，但是高质量的框架已经可以帮您的大忙了。
To collect the usernames and their corresponding home directories, you can pull the first and sixth fields.
要搜集用户名及其对应的主目录，我们可以提取第1个和第6个域的内容。
When you type grails install-plugin searchable, the first thing that happens is that a request goes out across the Web to pull down the latest lists of plug-ins. Listing 5 shows the details
当键入grailsinstall-plugin searchable 后，所发生的第一件事情是向Web 发出一个请求来拉出插件的最新列表，如清单5 所示
First: you reach for the window frame, undo your seatbelt, pull yourself out and swim to the surface.
第一轮：够到窗户框，解开安全带，把自己拉出去，游到水面上。
You can pull it up over your mouth to warm the air you're breathing in, which is especially helpful when you first start your run.
你能在你的嘴之上把它拉起来温暖你正在吸入的空气，这当你最初开始你的奔跑，尤其有帮助。
You can pull it up over your mouth to warm the air you're breathing in, which is especially helpful when you first start your run.
你能在你的嘴之上把它拉起来温暖你正在吸入的空气，这当你最初开始你的奔跑，尤其有帮助。
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