two-way
adjective uk/ˈtuː.weɪ/ us/ˈtuː.weɪ/
(DIRECTION)
[ before noun ]双向的；可双向通行的
moving or allowing movement in both directions
a two-way street 可双向通行的街道
(RADIO)
[ before noun ]（无线电）收发两用的
Two-way radios can both send out and receive signals.
(RELATIONSHIP)
双方的；相互的；彼此的
A two-way situation involves two people or two groups of people working together to achieve a shared aim.
Negotiations are a two-way thing - both sides have to come to a compromise. 谈判是双方的事——双方都必须作出妥协。
Remember, friendships are a two-way street (= both people have to make an effort). 记住，友谊是需要双方共同付出努力的。