这些超市对供应商狠狠地压价,同样的单位营业额里,这些超市雇用的员工是正常人数的五分之一,在大多数地区,超市都享有低商业税。
They exert an iron grip on their suppliers, they employ just one fifth of the staff per unit of turnover, they enjoy, in most places, lower business rates.
在大多数领域,这个单位已经被“焦耳”取代。
大多数行星形成模型预言在主恒星一个天文单位(或从地球到太阳的平均距离)以内会有一个“沙漠之星”。
Most planet-formation models predict a “planet desert” within one astronomical unit (or the average distance from the Earth to the sun) of a host star.
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