erosion/ɪˈroʊ.ʒən/名词削弱;逐步的破坏The survey reveals a gradual erosion of the president's popularity and support.民意调查显示了总统声望和所获支持的逐渐削弱。侵蚀;腐蚀;磨损soil/coastal erosion水土流失/海岸侵蚀想跟读,去练习