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1.productivity n. 生产力；生产率；生产能力
Scientific inventions such as these have raised labour productivity by a big margin.
诸如此类的科学发明， 都大大提高了劳动生产率。
2.variation n. 变化；[生物] 变异，变种
The survey found a wide variation in the prices charged for canteen food.
这项调查发现不同的餐厅出售食物的价格存在很大的差别。
3.attributable adj. 可归于…的；可归属的
10,000 deaths a year from chronic lung disease are attributable to smoking.
每年1万个慢性肺病患者的死亡可能是由于吸烟导致的。
4.prime n. 初期；青年；精华；全盛时期
We've had a series of athletes trying to come back well past their prime.
我们有不少早已过了鼎盛时期的运动员在试图复出。
5.binge n. 狂欢，狂闹；放纵
She went on occasional drinking binges.
她偶尔狂饮一番。
