Cutting the cone at various angles gives you various shapes of ellipse. Until the angle of your cut exceeds the angle of the side of the cone.

从侧面不同角度切割圆锥，你便会得到不同的椭圆，直到你的切割角度超过圆锥体侧边的角度。

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Just rub the cut side of half a lemon all over them and buff with a soft cloth.

只需用半个柠檬的切面擦拭它们全部，然后用软布擦亮即可。

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On the demand side, Western companies needed to cut costs, but their computer systems still required a lot of human Labour.

在需求方面，西方企业急需削减成本，但是他们的电脑系统仍然需要大量的人力维护。

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Studies suggest that operating the two side-by-side can cut Bluetooth's already meagre bandwidth by as much as a third.

ECONOMIST: REPORT: WIRELESS COMMUNICATIONS

The game itself was switching swiftly from end-to-end without either side creating clear-cut chances.

BBC: Sport - Football - Dundee United 3-1 Aberdeen

Rangers took the lead when Burke's pass released Novo down the right-hand side and his cut-back from the byline was rifled home by Ferguson.

BBC: SPORT | Football | Europe | Rangers 4-0 Hapoel (agg 5-2)