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Exhaustion is a feeling of being extremely, completely tired - much more than just "sleepy"; it's when your body or mind has almost nothing left to give. It can come from hard physical work, lack of sleep, stress, illness, or emotional strain over a long time. "Heat exhaustion" is a specific medical condition caused by too much heat, with symptoms like weakness, dizziness, and heavy sweating - it's serious and can turn into heatstroke if ignored.
精疲力盡、筋疲力竭；(heat exhaustion) 中暑衰竭
原始詞典資料5 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
exhaustionnoun/ɪɡˈzɔːs.t͡ʃən/
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The point of complete depletion, of the state of being used up.
- We worked the mine to exhaustion, there's nothing left to extract.
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Supreme tiredness; having exhausted energy.
- I ran in the marathon to exhaustion, then I collapsed and had to be carried away.
- As soon as Julia returned with a constable, Timothy, who was on the point of exhaustion, prepared to give over to him gratefully. The newcomer turned out to be a powerful youngster, fully trained and eager to help, and he stripped off his tunic at once.
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datedchemistrynatural-sciencesphysical-sciencesThe removal (by percolation etc) of an active medicinal constituent from plant material.
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datednatural-sciencesphysical-sciencesphysicsThe removal of all air from a vessel (the creation of a vacuum).
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mathematicssciencesAn exhaustive procedure
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。