词性：adj.
音标： [ˌbaɪˈlætərəl]
释义： 双边的
bilateral can describe anything with two sides, like some of the organs in the body: the brain, heart and lungs all have two distinct sides.
unilateral [ˌjuːnɪˈlætrəl] 一方的,单方面的,单边的
Certainly, we commit to a bilateral exchange.