肌肉发达

Lifting weights will build arm and shoulder muscles.

举重会使手臂和肩肌肉发达。

He’s big and beefy.

他身材魁梧,肌肉发达。

Arm flat and muscular.Bone substantial but not coarse and muscles hard and devoid of flabbiness.

臂肌肉发达，骨骼坚实，但不粗，肌肉坚硬，没有软弱无力。