英和和英

skill―dexterity―mastery

break one's arm

to bare one's arms―turn up one's sleeves―roll up one's sleeves

bind the arms of

to improve oneself in an art―perfect oneself in an art

link arms

Pull back your arms!

to exercise one's talent―show one's talent

to do one's utmost―strive to the utmost―strain every nerve

to come to blows

to twist muscle of one's body

to improve one's skill―improve one's ability

to bare an arm

He has his arm in a sling.

an arm

a single arm

slender arms

a support for the arm

to be masterly―smart

to link one's arm through another's―link arm in arm

to link one's arms through another's―link arm in arm

to fold one's arms

hone one's skills

the forearm

I cross my arms.

One burns―itches―to do something.

He has improved in his ability.

to strain the arm

a brawny arm

brachial power