短语词组用作名词 (n.)动词+～cause 〔create, produce〕 friction 引起摩擦minimize 〔reduce〕 friction 减小摩擦形容词+～constant friction 经常性摩擦political friction 政治冲突～+介词the friction of sth against 〔between〕 与…之间的摩擦the friction over 关于…的争执短语 返回 frictionally