想找出一個描述午夜的天空有雲的那種藍色的名詞，幾乎找不到。

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swing-shift (n.)
1941 (typically 4 p.m. to midnight), from the notion of "facing both ways" between day and night shifts
平移（n。） 1941年（通常是下午4點至午夜），從白天和黑夜之間“雙向”的概念出發

cerulean (adj.)
"sky-colored, sky-blue," 1660s, with -an + Latin caeruleus "blue, dark blue, blue-green," perhaps from a dissimilation of caelulum, diminutive of caelum "heaven, sky," which is of uncertain origin (see celestial). The Latin word was applied by Roman authors to the sky, the Mediterranean, and occasionally to leaves or fields. The older adjective in English was ceruleous (1570s). As a noun, from 1756. The artist's cerulean blue is from 1885.
蔚藍的（adj。）
“天藍色”，1660年代，帶有-an +拉丁藍色鳶尾，“藍色，深藍色，藍綠色”，可能是由於對青蒿的異化，減少了青蒿的“天，天”，這是不確定的（請參見天體）。羅馬作家將拉丁詞用於天空，地中海，偶爾也用於樹葉或田野。英語中較老的形容詞是藍陶的（1570年代）。作為一個名詞，從1756年開始。畫家的天藍色為1885年。

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sky-writing
天空寫作、天空文字
??

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skylight (n.)
1670s, "light from the sky," from sky (n.) + light (n.). Meaning "small opening in a roof to admit light" is recorded from 1680s. Related: Sky-lit. 
天窗
1670年代“來自天空的光”，來自天空（n）+光線（n）
意思是從1680年代開始記錄“屋頂上的小開口以允許光線進入”。相關：天亮。

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