We've certainly seen high-level languages evolve.

我们的确看到了高层次语言的演进。

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But then, what do high-level languages do that you can't do in machine code?

但是，高级语言能够完成哪些用机器码无法完成的任务呢？

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There's no dividing line with machine languages on one side and all the high-level languages on the other.

并没有一个位于机器语言和高级语言之间的分水岭。

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Languages are on high abstract level.

语言极为抽象。

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An assembly language is a low level language and it is tedious to write applications in it compared to high-level languages.

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The advent of modern optimizing compilers and many fold enhancements in computing hardware performance have now eliminated the need to use an assembly language in most applications and most applications are now written in higher level languages.

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Fortran was one of the first widely adopted "high level" computer languages--before those, computers had to be programmed directly in assembly language, a complicated and laborious process.

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