You'll have either a positive energy balance, a negative energy balance or a perfect balance.

你要么有一个正能量平衡，要么是负能量平衡，或是一个完美平衡。

youdao

Positive energy balance: If you end up with a positive number, you've achieved the right balance for weight gain.

正能量平衡：如果你得到一个正数，那么你体重达到正的平衡。

youdao

CONCLUSION: Positive energy balance should be kept in the training in bodybuilders so as to keep more energy joining the anabolism of muscle.

结论：健美运动员在训练期间应保持正能量平衡，以便有更多的能量参与肌肉的合成代谢。

youdao

First of all, building muscle requires a positive energy balance, which means that you have to take in more calories than you burn.

CNN: How should I eat to build muscle mass?