mutually
🇺🇸
/ˈmjuːtʃuəli/
🇬🇧
/ˈmjuːtʃuəli/
shared or done by each person involved
We agreed to help each other, and our cooperation was mutually beneficial.
お互いに助け合うことに合意し、私たちの協力は相互に有益だった。