本文研究了这三步反应。
在第三步中进行9次跑步练习……这之后，会变得更容易。
Commit to doing 9 running workouts in Step 3... after that, it'll get easier.
然后我们到了第三步，这通常是最有挑战的问题：专业知识。
That brings us to the third, and usually most challenging issue: expertise.
然后我们到了第三步，这通常是最有挑战的问题：专业知识。
That brings us to the third, and usually most challenging issue: expertise.
应用推荐