dynamics：动力学，力学；(音乐中的)力度变化，力度强弱法 

词根词缀： -dynam-力 + -ics名词词尾,...学

• overinflated
• overjoyed
• overkill
• overlap
• overlay
• overleaf
• overload
• overlook
• overlord
• overmanned
• overnight
• overpass
• overplay
• overpopulation
• overpower
• overpowering
• overprint
• overproduce
• overprotective
• overqualified
• overrate
• overreach
• override
• overriding
• overrule