The code is "done" when all of the unit tests pass.
一旦通过全部单元测试，代码也就完成了。
Unit tests exist for all functions, and they always pass at 100%.
每个函数都必须经过单元测试，并且必须100%通过。
Next, you write just enough code in order for the unit test to pass.
接下来，您编写能够通过这个单元测试的程序代码；
A larger time unit, perhaps a week, seemed to pass very quickly.
较长的时间——譬如一个星期——则似乎过得很快。
Unit 45 Could you please pass me the salt?
麻烦你把盐递过来给我好吗?。
Unit 45 Could you please pass me the salt?
麻烦你把盐递过来给我好吗?。
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