reciprocation
reciprocation — 名詞
1. the act of giving back the same feeling, action, or behaviour that someone has s
回報
以相同方式回應他人
the act of giving back the same feeling, action, or behaviour that someone has shown to you — for example, returning a friend's kindness or matching a partner's affection.
After months of unanswered calls, Defne stopped hoping for any reciprocation of her friendship.
打了幾個月的電話都沒人接之後，Defne 不再期待她的友情能獲得任何回報。
reciprocation + of + [feeling/action]
Joshua was surprised by the warm reciprocation he received from his new colleagues.
Joshua 對於新同事們給予他的熱情回應感到驚訝。
The community centre relies on reciprocation from local businesses that once received help.
這間社區中心仰賴過去受過幫助的在地商家回饋支持。
Paloma felt her efforts were wasted when no reciprocation came from the organisation.
當組織沒有任何回應時，Paloma 覺得自己的努力都白費了。
Without mutual reciprocation, even close friendships can begin to feel one-sided.
缺少相互回報時，再親密的友情也可能變得一廂情願。
- reciprocity
More formal and abstract; focuses on the principle of mutual exchange rather than a single act.
- mutuality
Emphasises the shared quality of a relationship rather than the act of returning something.
- requital
Very formal and slightly old-fashioned; can imply repayment of a favour or revenge.
- return
Everyday word; less specific about the equal nature of the exchange.
- unrequited
Describes a feeling (especially love) that is not returned; used as an adjective, not a noun.
- indifference
Describes a lack of response rather than a negative response.
文法句型
reciprocation + of + [feeling/action]
reciprocation + from + [person/group]
用法筆記
The related verb 'reciprocate' is far more common in everyday speech; 'reciprocation' is typical in formal writing about relationships, social exchange, or emotional dynamics.
常見錯誤
2. a repeated movement in two opposite directions, like the motion of a piston insi
往復運動
機械部件來回反覆移動
a repeated movement in two opposite directions, like the motion of a piston inside an engine or a saw blade cutting through wood.
The engine's smooth operation depends on the steady reciprocation of its internal pistons.
引擎能否平穩運轉，取決於內部活塞的穩定往復運動。
reciprocation + of + [mechanical part]
Adina watched the saw blade's rapid reciprocation as it cut through the thick oak plank.
Adina 看著鋸片快速往復運動，切入那塊厚橡木板。
In a steam engine the reciprocation of the piston turns the wheels of the train.
在蒸汽機中，活塞的往復運動帶動火車車輪轉動。
The pump's gentle reciprocation created a quiet humming sound throughout the basement.
水泵輕柔的往復運動在地下室裡發出穩定的嗡嗡聲。
Hiro studied the reciprocation of mechanical linkages to understand how the old factory clock worked.
Hiro 研究機械連桿的往復運動，想弄懂那臺老工廠時鐘的運作原理。
- oscillation
Often implies a periodic or swinging motion, not necessarily in a straight line.
- to-and-fro motion
A descriptive everyday phrase; less technical than 'reciprocation'.
- alternating motion
Emphasises the change in direction rather than the return aspect.
- continuous rotation
Describes motion in one direction (like a spinning wheel) rather than back-and-forth.
文法句型
reciprocation + of + [mechanical part]
用法筆記
Primarily used in engineering, mechanics, and physics. The related adjective 'reciprocal' can describe the same back-and-forth motion in technical writing.