1The shoulder — the body part where the arm (or wing) attaches to the torso; frequently used in set expressions about fatigue or emotion, such as 「肩が凝る」(stiff shoulders) or 「肩を落とす」(to be disheartened).
長時間パソコンを使っていると肩が凝る。
My shoulders get stiff when I use the computer for a long time.
彼は重いリュックを肩にかけて歩いていた。
He was walking with a heavy backpack slung over his shoulder.
試合に負けて、選手たちは肩を落として帰った。
Having lost the match, the players went home with their shoulders slumped.