Everyday English: elbow room

elbow room 某人能轉身的地方或空間
The working environment is very bad because there is not enough elbow room.
這工作環境非常惡劣，因為沒有足夠的轉身空間。

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Everyday English: elbow grease

elbow grease 費體力的清潔工作
She put a lot of elbow grease into cleaning the kitchen.
她花了很多氣力去清洗廚房。

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