Before the war espressos had often been ruined by machines that squirted steam through the ground coffee, burning it on the way and producing a dark, bitter liquid.

战前意式咖啡总被机器弄坏因为机器总把蒸汽喷到咖啡粉上，在此过程中咖啡粉会被烧坏，就会产出又黑又苦的液体。

youdao

There were 46 consumer complaints about dark material in the liquid products between June 2009 and April 2010, according to the FDA report.

在2009年6月至2010年4月之间，FDA报告说有46位患者投诉在液体药品中发现了不明黑色污染物。

youdao

Each white, milk or dark chocolate shell has a slot in the front for wafers, nougat, biscuit or caramel, and a depression in the top to hold nuts, fruit or liquid.

每一块白巧克力、牛奶巧克力或黑巧克力外壳的前端都有一个凹槽，可以把威化饼、果仁糖、小饼干或者焦糖块塞进去。外壳顶部也有个凹洞，用来摆放坚果仁、水果或者果酱。

youdao

The machine blends iron, bleach and sodium hydroxide to form a dark purple liquid mixture of ferrate, salt and water that gets metered into the water supply. (The color disappears instantly as it reacts with the water.) Common disinfectants ozone and chlorine can turn the water cloudy or, worse, leave behind harmful chemical by-products.

FORBES: Entrepreneurs

How it works:Ones and zeroes of digital data are first converted into checkerboard "pages"of bright and dark pixels using a liquid-crystal panel called a spatial light modulator.

FORBES

At Ta Prohm, to the northeast of Angkor Wat, strangler figs spill like liquid over 39 temples in various stages of ruination, creating a tangle of tipsy roofs and dark hallways.

BBC: The perfect trip: Cambodia