VOA慢速英语:American Scientists Create The World's First Genetically Engineered Monkeys

look like看起来与(某人或某物)相像〔相似〕
例句：He looks like a scholar.
他看上去像个学者。

2. They also can produce the cells in the placenta, the tissue that connects the embryo to the mother.

connect to使与…连接
例句：The island is connected by a steamer service to the mainland.
轮船航运把该岛与大陆联系起来。

3. Totipotent cells were responsible for creation of the whole animal, not just other living tissues.

be responsible for为…负责,形成…的原因
例句：The bad weather is responsible for the small attendance.
出席率低是由于天气不佳。

4. In the process, stem cells were injected into an embryo when it was still in early development.

inject into把…注入身体
例句：The doctor injected glucose into his patient's veins.
医生将葡萄糖注入病人的静脉。

5. The announcement came from scientists at the CERN laboratory in Switzerland.

come from由…造成, 源自
例句：Knowledge comes from practice.
知识来自于实践。

6. This causes the atoms to break into even smaller pieces.

break into把…分成
例句：Mary broke the chocolate into pieces, one for each person.
玛丽将巧克力分成小块, 每人一块。

7. Mr. Roser visited the CERN laboratories in the days leading up to the announcement.

lead up to作为…的准备; 导致
例句：The report describes the negotiations which led up to the settlement.
这篇报道描述了导致达成协议的谈判的情况。

8. For thirty years, American scientists used the Tevatron to search for the sub-atomic particle.

search for搜索, 搜寻
例句：We searched in vain for the missing child.
我们到处寻找那孩子, 但没有找到。

9. However, there is a still a chance the device could produce the results scientists are 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。

10. This, of course, also had an effect on acidity levels in the ocean, and just to compare this naturally occurring increase in atmospheric carbon dioxide concentrations with man-made emissions over the last, let’s say two-hundred years.

have an effect on对…有影响;对…起作用,产生效果
例句：Alcoholic drink can have a bad effect on your body.
含酒精的饮料会对你身体有很坏的影响。
compare with与...相比
例句：I'm afraid my English compares poorly with hers.
恐怕我的英语同她的英语相比要差得多。

11. Mr. Timmerman says that has resulted in dangerously high levels of ocean acidification in some areas.

result in导致,结果是
例句：The flood resulted in a considerable reduction in production.
这次水灾造成相当大的减产。