开放的沟通有助于减少团队内部的摩擦。

Open communication helps to reduce ___friction within teams.

财务分歧是婚姻中常见的摩擦来源。

Financial disagreements are a common source of ___friction in marriages.

两国间的政治摩擦阻碍了贸易谈判。

Political ___friction between the two countries has hindered trade negotiations.