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| NOUN |
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| /ˈsiːlɪŋ/ |
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| 1 | the surface that is above you in a room 天花板；顶棚 |
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| 2 | an upper limit set on the number or amount of something 上限 |
| They imposed a ceiling on agricultural imports. 他们为农产品的进口规定了上限。 |
| A ceiling of £100 was put on all donations. 所有捐款的上限规定为100英镑。 |
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| 3 | technical the greatest height at which an aircraft can fly and be safe 最高飞行限度；上升限度 |
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| 4 | technical the distance from the surface of the Earth to the lowest clouds 云幕高度（低层云与地面的距离） |
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