A sapphire, the common name for the mineral corundum in its transparent blue form, sparkles.

这是一颗熠熠生辉的蓝宝石。对显而易见的蓝色矿物刚玉通常称之为蓝宝石。

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The default ICONS for Folders have changed to be the transparent blue ones featured a long time ago.

默认的文件夹图标已经改为很早之前那种透明蓝的效果。

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In the summer, its ice-cold, crystalline blue waters are transparent to a depth of 40 meters (131 feet), and colorful wildflowers bloom along its shores.

夏季，它那冰冷，透明水晶般的蓝色湖水可见度深达40米(131英尺)，沿岸盛开着五颜六色的野花。

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This is used to generate a matte - which is transparent wherever the blue-colour features on the original film, and opaque elsewhere.

BBC: Blue and green-screen effects pioneer Petro Vlahos dies

Each disc is covered in a transparent plastic coating (either blue, green, yellow or red) which lets daylight filter through.

WSJ: Daniel Buren's Bright Periphery | 'Excentrique(s) Travail In Situ' at the Grand Palais in Paris

Maybe it's time (once in a blue moon) for a high-level bipartisan commission--televised and transparent--to review the science, the costs and the regulatory processes, taking into account the national interest.

FORBES: A No-Lame-Duck Growth Agenda