人類壽命極限?
Humans have always wondered if it was possible to live forever.
人類總是好奇長生不老的可能性，
wonder(v.)疑惑;好奇;想知道possible(adj.)可能的
However, death cannot be avoided, so the question becomes, “How long can we live if we do not die of common causes such as cancer, heart disease or accidents?”
然而死亡是不可避免的，那問題就會變成：如果我們不會因癌症、心臟病、意外等常見死因而去世的話，那我們可以活多久？
death(n.)死亡avoid(v.)避免die of sth.=死於…die from sth.=死於…common(adj.)常見的
Researchers report that even if we ignore the things that usually kill us, our body’s ability to keep us alive still fades with time.
研究人員提出，就算忽略種種死因，人體機能仍會隨著時間衰退。
ignore(v.)忽略;不理會ability(n.)能力fade(v.)(使)褪色;(使)變暗;(使)衰退
Timothy Pyrkov, a researcher at a Singapore-based company called Gero, and his colleagues studied the “pace of aging” in three large groups in the U.S., the U.K. and Russia.
新加坡生技公司「Gero」的研究人員皮爾科夫和他的同事針對美國、英國與俄羅斯的三大年齡族群進行「衰老速度」的研究。
age(n.)年紀;年齡(v.)老化;衰老anti-aging=抗老化
They looked at changes in blood cell counts and the daily number of steps taken and analyzed them by age groups.
他們觀察這些人的血液細胞數量變化與每日行走步數，然後按照年齡層分析數據。
blood cell count=血液細胞數量analyze(v.)分析analysis(n.)分析
The result shows that both blood cell and step counts decreased as age increased.
結果顯示，血液細胞與步數都隨著年紀增長而遞減。
decrease(v.)減少increase(v.)增加
The researchers used the data and found that the maximum life span ranges from 120 to 150 years.
研究人員根據數據推斷人類壽命最長可長達120年至150年。
maximum(adj.)(n.)最大(限度)的;最大值minimum(adj.)(n.)最低(限度)的;最小值life span=壽命memory span=記憶廣度attention (concentration) span=注意力廣度range from A to B=範圍從A涵蓋到B