Collins Chinese Dictionary Plus (3rd edition), 2011:
mutually [ˈmjuːtʃuəlɪ]
 adv
  [convenient, acceptable]  彼此 bǐcǐ
            -  mutually exclusive
 互不相容 hù bù xiāngróng
在这些条目还发现'mutually':
在英文解释里:
agree
 - codependent
 - come to an agreement
 - cross-license
 - in common
 - interdependent
 - interrelate
 - reach a compromise
 - recriminatory
 - symbiotic
中文: