动不动dòng·budòng表示很容易产生某种行动或情况(多指不希望发生的),常跟‘就’连用{[usu. followed by 就 jiù](of an act or situation, usu. unwished for) occurring frequently, easily; frequently; at every turn; at every move; at the drop of a hat; at the slightest provocation}: ～就感冒{easily catch cold}|～就发脾气。{be apt to lose one's temper; quick to anger}€