derive

Mr. Ying is one of those happy people who derive pleasure from helping others..英先生是那种助人为乐的快活人。

de ＋ rive(看作river) → 黄河是中华文明的发源地 → 起源记忆

How much of your country’s electrical supply is _______ from water power? derive from： 来自于。 句意： 贵国的电力供应有多少是来自水力? deduce： 推论， 演绎； detach： 分开， 分离； decline： 下降， 下倾。314declined

derive from源出，来自，得自；衍生于

真题例句...What distinguishes children from adults is their strong ability to derive joy from what they aredoing...第一套CET42015.12阅读理解

真题例句...we derive massive economic benefits when we buy the most affordable energy on the world market and when we engage in energy trade around the world...第三套CET42014.6阅读理解