ceiling

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ceiling 是什么意思

中文释义

n. 天花板

[经] 顶点, 顶线, 上限

英文释义

n. the overhead upper surface of a covered space

n. (meteorology) altitude of the lowest layer of clouds

n. an upper limit on what is allowed

n. maximum altitude at which a plane can fly (under specified conditions)

ceiling 的真实例句

以下例句摘自真实英文文章，看看 ceiling 在自然语境里怎么用：

Although 1 million satellites is the headline-grabbing number, these pursuits can happen below that ceiling.

—— Elon Musk’s SpaceX Endgame

The images are also in a room with screens covering the walls, floor and ceiling.

—— Israel and Lebanon extend ceasefire. And, Trump eases medical marijuana rules

In a sustained campaign, maintenance throughput becomes a hard ceiling on sortie generation.

—— F-35 is built for the wrong war

Nobi, a Belgian company, makes AI-powered ceiling lamps that detect falls and keep an eye on sleep and behavior.

—— How AI may reshape elderly care

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