Difficult job, quit difficult, the problem is often not out of the enterprise, but in himself.

求职难，跳槽难，问题往往不是出在企业上，而是出现在自己身上。

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Based on the currently available test devices and measuring methods, it is quit difficult to accurately measure the vaporization rate of mineral matter in coal combustion process.

鉴于目前国内的实验设备和测量手段，精确测量煤燃烧过程中各种矿物质的气化率还存在很大困难。

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It may seem difficult to quit an addition, but don't you think it might be worth it?

也许看起来做到这些是很困难的，但是你不认为这是很值得的吗？

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As your salary increases in the corporate world, it becomes more and more difficult to quit.

FORBES: Why You Should Quit Your Job

As a consequence, girls will often quit prematurely when faced with a difficult task.

FORBES: Women: Are We Our Own Worst Enemy?

And it is extremely difficult to unseat the president if he refuses to quit: either members of the federal parliament would have to take a case against him to the constitutional court, or he would have to be convicted of a felony.

ECONOMIST: The president tries to ride out a home-loan scandal