The stem-cell controversy is also complex.
对于干细胞研究的争论也是极具复杂。
America, it seems, is back in the stem-cell business.
看上去，美国回到了干细胞事业中了。
These spiral vessels are part of a banana plant stem.
这些螺旋状的脉管是香蕉植物茎的一部分。
Science is the solution to stem rust, not the cause of its return.
科学是根茎锈病的解决办法，而不是其复发的原因。
People are saying that stem cells are basically going to be the new miracle drug.
人们常说干细胞将会是新的救命的奇药。
She tied a knot in a cherry stem.
她在樱桃梗上打了个结。
He told the magazine in an exclusive interview: "All my problems stem from drinking."
他在一次独家采访中告知那家杂志：“我所有的问题源于饮酒。”
Stem cell research is supported by many doctors.
干细胞研究得到很多医生的支持。
This is a plant stem that has been pithed.
这是一根已经除去木髓的植物的茎。
Keep watering weekly, and you should see a new stem coming through.
保持每周浇水，并且你应该看到一新茎干长出来。
My favorite is the taro stem and duck.
而我最喜欢的就是秘制芋头茎酿鸭肉。
The plant stem may grow more than fruits, for example.
例如，植物的茎可能比果实还要长得好。
The long stem of bamboo is hollow, which makes them light and strong.
竹子长长的茎是空的，这使它很轻很结实。
Embryonic stem cells are the source of every cell, tissue and organ in the body.
身体中的每一个细胞，组织和器官都来源于胚性干细胞。
Now with stem cell technology there are two pathways that are imaginable.
如今有了干细胞技术，也就有了两条途径可选。
The other major development was stem cells.
另一项主要研究成果是干细胞。
As we age, these stem cells tend to become less responsive.
随着年龄增长，这些干细胞往往变得不那么活力。
一个另外干细胞。
They were given high or low dose stem cell infusions, or a dummy injection.
分别为他们植入高剂量或低剂量的干细胞，或进行虚拟植入。
The world has heard much of stem cells recently.
最近，有关干细胞的新闻已屡见不鲜。
More disconcerting is the ability of a cancer stem cell to hide.
更令人困惑的是癌症干细胞的隐藏能力。
The bone marrow was the source of the stem cells that made the procedure newsworthy.
骨髓是干细胞的来源，并使得这一过程有报导价值。
Half of Europe is opposed to embryonic stem cell research.
半个欧洲反对胚胎干细胞的研究。
This is the section of the brain stem of Einstein.
这是爱因斯坦脑干的切片。
Creating a new animal from a stem cell is likely a long way off.
通过干细胞创造新的动物有漫漫长路要走。
Creating a new animal from a stem cell is likely a long way off.
通过干细胞创造新的动物有漫漫长路要走。
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