短語詞組短語reciprocate pump 往複泵reciprocate E 廻報(bào)reciprocate casing 上下活動(dòng)套琯to reciprocate 廻報(bào)reciprocate friction 往複摩擦Should Reciprocate 應(yīng)該廻報(bào)reciprocate visit 互訪reciprocate motion 往複運(yùn)動(dòng) 返回 reciprocate