It's not easy to master a foreign language.

掌握一门外语并不容易。

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Conclusion TME technology is easy to master, with clear anatomical level and low incidence of local tumor recurrence.

结论TME技术易于掌握，解剖层次清晰，肿瘤局部复发率低，值得临床推广应用。

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While the double-tap is certainly simple and easy to master, even for people who can't double click, pinching is what steals the show.

双击肯定很简单，即使不会用鼠标双击也能一学就会，“捏”这个操作更是好玩儿了。

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It's very easy to use. But something you really should master.

这个句型很容易就能学会，这也是你必须得掌握的一个句型。

When 课堂 - SpeakingMax英语口语达人

The "Is there" pattern is a great one to master. because it's so easy.

Is there”句型是一个应该掌握的很棒句型。因为轻而易举就能学会它。

Is there 课堂 - SpeakingMax英语口语达人

But Resende shows that the details of modular manufacturing are not easy to master.

ECONOMIST: Car making

It's always hard to say how much this kind of personal branding contributes to the success of a business, especially one like fish-farming that's easy to enter but hard to master.

FORBES: Magazine Article

Adobe Ideas is an easy-to-master, vector-based tool for drawing.

ENGADGET: Adobe brings Touch Apps family to Android tablets, Creative Cloud looms on the horizon