eciprocate
v
1 [I, Tn] (fml 文)
(a) give and receive (sth) in return; exchange (sth) mutually 互給(某物); 互換(某物).
(b) return (sth done, given or felt) 回報以(某種動作、 物品或感情)
He reciprocated by wishing her good luck. 他也祝她交好運.
I reciprocate your good wishes. 我也同樣祝福你.
2 [I] (of parts of a machine) move alternately backwards and forwards in a straight line (指機件)沿直線往復移動
a reciprocating saw 往復式鋸
reciprocating pistons 往復式活塞. Cf 參看 rotary 2.