1 [T] [I] (formal 正式)reciprocate (sth) (with sth) to behave or feel towards sb in the same way as he/she behaves or feels towards you 以与对方同样的方式表现或感觉；回报: Her passion for him was not reciprocated. 她对他的爱没有得到回报。They wanted to reciprocate the kindness that had been shown to them. 他们想要报答受到过的盛情。He smiled but his smile was not reciprocated. 他笑了，但对方没有朝他笑。

2 [I] (technical术语) to move backwards and forwards in a straight line 往复运动: a reciprocating action/movement 往复动作／运动 ➔reciprocation /rɪˌsɪprəˈkeɪʃn ||; rɪˌsɪprəˈkeʃən/ noun [U]