VOA慢速英语:A Way to Make New Eggs in Women?

have trouble在…有困难
例句：I have trouble waking up in the morning . 
早上起来对我而言是件苦事。   

2. For years, the thinking has been that women are born with all the eggs their bodies will ever produce.

be born with天生具有
例句：He was born with a squint. 
他先天斜视。

3. So having these cells now isolated, I think, opens up a lot of opportunities to consider that we simply couldn't fathom before."

open up变宽; 展现; 揭示
例句：The chance meeting with the president opened up new possibilities for him.
与总统邂逅提供给他新的机会。

4. Stem cells are special kinds of cells. Starting in embryos just a few days old, they produce the many different cell types and tissues that form the body. In some adult tissues, stem cells produce replacements for damaged or worn out cells.

wear out用坏, 穿破
例句：My shoes are worn out.
我的鞋子穿坏了。

5. In his new study, Jonathan Tilly and other researchers removed cells from ovaries.

remove from从…中移开〔拿走, 除掉〕
例句：She removed mud from her shoes.
她擦去了鞋上的泥。

6. The scientists did laboratory tests to make sure they had the right cells that they were looking for.

look for寻找
例句：She is looking for her lost child.
她正在寻找失去的孩子。

7. Then they used what are known as culturing methods to grow the cells so they would divide and produce more cells.

be known as被认为是
例句：Radio, television, newspapers and magazines are known as the mass media.
广播、电视、报纸和杂志被称为大众传媒。

8. Jonathan Tilly says his work could also lead to fertility treatments that might improve the chances for more traditional fertilization methods.

lead to导致, 引起
例句：An ordinary cold can soon lead to a fever.
一场普通的感冒很快便会引起高烧。

9. His paper on making new human eggs from stem cells was published online this week by the journal Nature Medicine.

make from由…制成
例句：Paper is made from rags.
纸是由破布制成的。