While this tip may seem easy, it requires constant attention.

当然这项提示也许看起来很简单，但需要持续的关注。

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It may seem easy when watching the instructor, but it often is not so easy when it comes time for you to do it.

看起来讲师做这些很容易，但是到了你手上就不一定了。

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Determining which industries aren't long for this world may seem easy enough. But some types of businesses, such as telemarketing1, are surprisingly hard to kill.

推断世界上哪些行当不会长久看似容易。但有些行当，比如电话营销，则出人意料地难以消灭。

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Determining which industries aren't long for this world may seem easy enough. But some types of businesses, such as telemarketing1, are surprisingly hard to kill.

推断世界上哪些行当不会长久看似容易。但有些行当，比如电话营销，则出人意料地难以消灭。

youdao