您要查找的是不是：
- But 20th century medicine did little to increase the natural life span of healthy humans. 然而，20世纪的医学对健康人的自然生命周期的增长几乎无能为力。
- Modern medicine has increased man's life span. 现代医学延长了人的寿命。
- Maybe only one person in a million lives to be a hundred.Many are those who do not live our their natural life spans. 而人命无常，长者不过百年，亦是千万中不得其一，更何况夭逝者还大有人在。
- Normal cells show a finite life span. 正常细胞显示有限的生命期。
- Modern medicine has increased man rs life span. 现代医学延长了人的寿命。
- The estimated life span is to predict the average. 估计寿命是预计一个人能活的平均年数。
- How Much Can Human Life Span Be Extended? 人类的寿命能延长到多久?
- But 20h century medicine did little to increase the natural life - span of healthy humans. 但是，20世纪的医学在延长健康人的自然寿命方面没有什么进展。
- Narwhals maximum life span is about 50 years. （寿命：独角鲸的最大寿命大约为50年。）
- Eating more fruit can extend your life span. 多吃水果能延年益寿。
- He was sent to prison for the term of his natural life. 他被送入狱监禁终身。
- The average life span for the nominee group was just over 76 years. 提名者小组的平均寿命略高于76岁。
- I'm going to keep to that idea the rest of my natural life. 我预备这一辈子一直保持这个原则。
- At one time, the human species had a 2000-year life span. 曾有一段时期，人类物种拥有2000年（人类年）的寿命。
- High precision, the speed quickly. natural life long. 精确度高，速度快，寿命长。
- Water injects natural life and poesy into a noisy city. 水给喧闹的城市注入自然的生机与诗意。
- LIFE SPAN Narwhals maximum life span is about 50 years. 寿命:独角鲸的最大寿命大约为50年。
- Any battery has a finite life span no matter what device it powers. 任何电池都具有有限的寿命，无论它具有多大的能量。
- The upper bound of life span for the solution was obtained. 得到了解的爆破时间跨度的上界。
- But two copies doom the bearer to pain and a shortened life span. 但同时带有两个突变的基因，却会让个体疼痛并且寿命减短。
