始终显示原文
考满分TOEFL: 小黑人

欢迎使用考满分精听听写

截止昨天,已经有 252988 同学完成了 4103155 次的练习

开始练习 查看新手引导

原文已被隐藏,你可用 快捷键 - 或点击 显示原文 按钮来查看原文

第1段

1 .This is Scientific American's 60-Second Science. I'm Karen Hopkin. This'll just take a minute.

该句暂无译文!

2 .Stem cells are prized for their ability to give rise to a variety of specialized cell types, including heart, liver, nerve and bone.

该句暂无译文!

3 .Unfortunately, it's the stem cells from embryos that have shown the biggest potential,

该句暂无译文!

4 .for generating both a range of tissues and a ton of controversy.

该句暂无译文!

5 .Now, researchers have discovered a new type of stem cell, present in adults, that appears to have similar potential to its embryonic kin.

该句暂无译文!

6 .Best of all, it comes from a source a lot of us would be happy to give away: body fat.

该句暂无译文!

7 .That's according to a study in the journal PLoS ONE.

该句暂无译文!

8 .These fat-based stem cells were discovered by accident.

该句暂无译文!

9 .Researchers were trying to grow cells from material collected by liposuction.

该句暂无译文!

10 .But when a piece of lab equipment failed, the cells in their sample died, except for these unusually hearty stem cells.

该句暂无译文!

11 .They can apparently withstand all sorts of harsh conditions, like nutrient or oxygen deprivation and attack by digestive enzymes.

该句暂无译文!

12 .In fact, stress may even activate these cells, which would make them excellent candidates for repairing diseased or damaged tissues.

该句暂无译文!

13 .More studies are needed to explore these cells' potential.

该句暂无译文!

14 .Which means researchers could be looking for a big fat donation.

该句暂无译文!

15 .Thanks for the minute, for Scientific American's 60-Second Science. I'm Karen Hopkin.

该句暂无译文!