当你在每次锻炼中取得进步时，你都会增加新的肌肉。

When you improve in each workout, you add new muscle.

youdao

我在肌肉力量上有了长足的进步，这对男人来说都会觉得不错。

I had a marked increase in muscle definition which, for a man, would be desirable.

youdao

一个初学者的进步需要很大的耐心，而只需很少的肌肉。

I forgot how much patience and how little muscle it takes to make progress when you are a novice swimmer.

youdao