On two separate morning visits to the scientists' lab, each man walked for an hour at an average speed that, in theory, should allow his body to rely mainly on fat for fuel.
在科学家的实验室里，每个人分别在上午的两次访问中，以平均速度走了一个小时，理论上，他的身体应该主要依靠脂肪作为燃料。
The tanker visits on average just once a week. The water it delivers lasts only four days.
水罐车平均一周来一次，而送水量只够维持四天。
New customers made up 17% of Wal-Mart's increased shopper visits, and their purchases were 40% higher on average than its traditional shoppers, said U.S. operations chief Eduardo Castro-Wright.
沃尔玛美国业务主管怀特(Eduardo Castro - Wright)说，在沃尔玛增加的购物客流量中，新顾客占到了17%，他们的消费额平均比传统顾客高出了40%。
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