Sundials don't work at night or on a cloudy day!

日晷在晚上或阴天不起作用！

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We see the sky is blue, but down in the valley it's darker—it's like on a cloudy day.

我们看到天空是蓝色的，但山谷下面却很暗——就像阴天一样。

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Let's go out to play on a cloudy day.

我们阴天出去玩吧。

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On a cold and cloudy day in March of eighteen sixty-one, Abraham Lincoln became the sixteenth president of the United States.

VOA: special.2009.08.06

Try to plant late in the day or on a cloudy day.

VOA: special.2009.05.19

The battery is an affordable, safe and reliable way to store energy for a cloudy day.

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"It's a cloudy day in the Sunshine State, " Democratic Rep. John Garamendi of Walnut Grove said Wednesday.

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It did, however, deliver a brighter picture on the cloudy day we tested.

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