1·Even more impressive is the progress in just a single year: human interventions fell from 0.8 times per thousand miles to 0.2, which translates into a 400% improvement.
更令人印象深刻的是仅仅在一年内的进步：人为干预从每千英里的0.8倍下降到0.2倍，这意味着改善了400％。
2·In the late 1970s, the infant mortality rate for the children of illiterate mothers was around 110 deaths per thousand live births.
在1970年代后期，在文盲母亲所生的孩子中，婴儿死亡率约为每1000名活胎婴儿中有110个夭折。
3·Cost Per Thousand?
每千人成本?。
4·We always use per thousand sign to express a thousandth.
我们总是用千分号表示千分数。
5·The natural population growth rate was 10.06 per thousand.
人口自然增长率为10.06‰。
6·Natural uranium has only seven atoms per thousand of the former.
每上千个自然界的铀才只有7个原子。
7·On average, there were 21 illnesses per thousand player-days.
在此期间每1000个比赛日，平均有21个病例。
8·The death rate was 20 per thousand in those days and is 6 per thousand now.
那时的死亡率是千分之二十，现在是千分之六。
9·The company will start by charging marketers per thousand impressions of their ads.
该公司开始时将是按每千次广告点击向营销商收费。
10·But players in their home countries endured only 15 illnesses per thousand days.
但是在本国比赛的运动员中，每1000个比赛日只有15起病例。