depression：(心情)抑郁；(经济)萧条  

词根词缀：de-向下 + -press-压 + -ion名词词尾

• multilateral
• multilingual
• multiloquence
• multimedia
• multimeter
• multimillionaire
• multinational
• multiparous
• multiparty
• multiped
• multiple
• multiplex
• multiplication
• multiplicity
• multiplier
• multiply
• multipotent
• multiprocessor
• multitask
• multitude
• multitudinous
• multivitamin
• mum
• mumble
• mumbo jumbo