读程式码，理解它并查证它。

Read my code. Understand it.

youdao

结合程式语言(Ruby)和框架(Rails)意指你将可以用更少程式码。

The combination of the language (Ruby) and the framework (Rails) means you can do more with less code.

youdao

在没有来源程式码时，做这些事就需要有更多的技巧（可能还需要有一些运气）。

It takes a lot more skill (and probably a measure of luck) to do these things without source code.

youdao