For the farmer who takes care to keep them cool, providing them with high-energy feed, and milking them regularly, Holstein cows are producing an average of 2,275 gallons of milk each per year.
对于那些照顾它们保持凉爽，给它们提供高能量饲料和定期挤奶的农场主来说，荷尔斯坦奶牛平均每年能产2275加仑的牛奶。
The fine for CDs and DVDs is $2.00 each per day.
CD 和 DVD 的罚款是每天每张两美元。
As you can see from this output, the setup and teardown routine messages appear once each per unit test execution.
正如在输出中看到的，每次执行单元测试都会显示设置和清除例程消息。
In fact, in 1995 mobile phone customers sent only 0.4 messages on average each per month.
事实上，在1995年，手机用户每月平均发送短信数量只有0.4条。
In fact, in 1995 mobile phone customers sent only 0.4 messages on average each per month.
事实上，在1995年，手机用户每月平均发送短信数量只有0.4条。
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