One bright morning I decided to clean my flat, including washing the window on the inside.

一个阳光明媚的早晨，我决定打扫我的公寓，包括擦一下窗户的内侧。

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Let's protect nature's beauty. Let's make our future bright. Let's start to clean up now.

让我们保护大自然的美丽。让我们的未来更美好。让我们开始清理吧。

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The boy had been polishing it until it was completely clean and bright.

男孩一直打磨它，直到把它磨得干净又明亮。

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Walking into the arrivals lounge, I was struck by how bright and clean everything appeared.

BBC: News | Africa | Namibia: Same continent, different world

It's a bright, clean, lively wine that's a perennial good deal.

WSJ: Vermentino, the Wine of Yachts and Beaches | Lettie Teague on Wine

Many experts and investors, among them Warren Buffet, forecast a bright future for the clean energy market.

FORBES: 3 Myths About America's Clean Energy Future