双绞和四线组对绞电缆 twin and quad pairing cable
对绞四线组电缆 quad pair cable
而舞者们对四人组舞 the Lancers
复对四线组 [通信] multiple twin quad
短对绞四芯线组 short pair twist quad
在《细胞》杂志周四所发表的一篇文章中，一组研究人员汇报了新的适应模式，这并非是对空气或食物的适应，而是对海洋的适应。
On Thursday, in an article published in Cell, a team of researchers reported a new kind of adaptation not to air or to food, but to the ocean.
他们研究了咖啡因对两组男性锻炼者的作用：一组是通常很少饮用咖啡的，另一组则是保持着平均每天四杯咖啡的吸收量。
They studied the effects of caffeine on two groups of male exercisers: those who usually consumed little caffeine and those with an average intake of four cups a day.
研究人员给四只乌鸦观看人的一组彩色照片，但把头发隐藏起来，训练一对乌鸦挑选男人照片，另一对乌鸦去选女人照片。
After scientists showed the four crows a series of colour photographs of humans with their hair concealed, one pair was trained to pick men's faces and the other pair women's faces.
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