New words：

fuel /ˈfjuːəl/
n.燃料；燃油；汽油；油料
v.(给…)加油；加燃料

核心逻辑：

→ 原本指用来生火的木柴
→ 后来泛指一切能燃烧提供能量的东西 → 燃料
作动词：给… 加燃料 → 给… 提供动力；加剧；刺激

Sample Sentences

Plants can be used as fuel.

His words added fuel to the fire.

Burning fuel causes air pollution.

We should try to reduce fossil fuel consumption.

We should develop clean fuels to protect the environment.

fossil /ˈfɒsl/ n.化石；老人；老古董

consumption /kənˈsʌmpʃn/ n. 消费；(能量、食物或材料的)消耗，消耗量；

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