He allowed a fine patina of old coffee to develop around the inside of the mug.

他任由马克杯里积上一层薄薄的咖啡垢。

《柯林斯英汉双解大词典》

Clear away any old coffee cups and lunch plates.

o清理掉所有的旧咖啡杯子和午餐盘子。

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The new headquarter was built in 2014 on the site of the old coffee roastery.

新总部在2014年改建于老咖啡烘焙塔的场地上。

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On foodie enclave Broughton Street is Artisan Roast (artisanroast.co.uk), a teeny temple of serenity for those who worship the reviving bean, wallpapered in old coffee sacks.

BBC: Postcard from Edinburgh

The Colombian Coffee Federation said its country's high-end growers have begun planting corn and other crops as a way of diversifying incomes, and that most have been reinvesting by replacing old coffee plants with newer, more productive ones.

WSJ: Coffee Growers Forge a Futures Recovery

On 21 July, 20-year-old Pacific Coffee Company chain unveiled its most ambitious branch yet, the Pacific Coffee Emporium.

BBC: A speciality coffee scene brews in Hong Kong