Grasp the basics (grammar etc.) before you start learning the advanced stuff.

学高级英语之前先把最基本的(语法等)学会再说。

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To understand how it works, you need to first grasp the basics of the mirage effect.

要了解它的工作原理，你需要先了解下海市蜃楼的基本原理。

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But business has its own language, and few hours with a browser can help you grasp the basics.

但是，业务拥有其自身的语言，并且几个小时的浏览就可以帮助您获得基本的要义。

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In the highest-achieving OECD countries, just 7% of pupils fail to grasp the basics.

ECONOMIST: Academic excellence

While it might not be up to professional standards, it is free, and this simple application allows the novice to grasp the basics of digital composing.

BBC: NEWS | Programmes | Click | Webscape

Since more and more financial decisions and responsibility for retirement savings are being placed on the employee, a solid grasp of the basics of financial literacy is necessary to have.

FORBES: How We Sabotage Our Financial Decisions