原文视听

As suspected, leptin and melanocortin
一如科学家的怀疑 瘦蛋白和黑素皮质素
are turning out to be just the tip of the iceberg.
只不过是冰山一角
We now know about a number of other
现在我们得知 大脑中的一些其他
chemicals in the brain that act to regulate appetite.
化学物质也在参与食欲调控过程
We know there are some that act to decrease appetite...
我们也知道 其中一些可以减弱食欲
..Such as the melanocortins, the neuromedins...
比如说黑素皮质素 神经调节肽
..POMC, the melanocortin receptor,
阿片促黑素原 黑素皮质素受体
CART...
可卡因-苯丙胺调节转录肽
There are those that decrease appetite,
这些东西都可以降低食欲
such as the orexins, galanin...
例如食欲肽 神经节肽
Neuropeptide Y... There are a number
神经肽Y 也有一些
of peptides released from the gut that affect appetite,
内脏器官释放的肽会影响食欲
such as glucagon-like peptide-1, enterostatin,
例如胰高血糖素样肽-1 肠抑素
cholecystokinin and on and on and on.
肠促胰酶肽等等
We're expecting more discoveries all the time.
我们一直在期待更多的发现
But even with all these drug targets,
即使有了所有药物标靶
they still have a long way to go.
前路依然漫漫
In terms of drug treatments for obesity,
在肥胖的药物治疗方面
we're lagging 20 years behind other avenues of research.
与其他研究方向相比 我们落后了20年
We're at the beginning of a long road now and even if a treatment
我们正在漫长道路的起点 即使明天
were to be identified tomorrow, then we're looking at 10,
就能提出一项治疗方法 我们依然
12 years before any treatment is actually available.
要等10年或12年才能真正实施治疗

重点解释

As suspected, leptin and melanocortin are turning out to be just the tip of the iceberg.一如科学家的怀疑瘦蛋白和黑素皮质素只不过是冰山一角

turn out to be:结果是；原来是；证实是

The man turned out to be a marvelous orator.

那人成了一位优秀的演说者。

It can turn out to be a tremendous burden.

变成一个沉重的负担。

In terms of drug treatments for obesity,在肥胖的药物治疗方面

in terms of:在 ... 方面

It is difficult to express it in terms of science.

要用科学的字眼来表达它是很困难的。

He often talks about his girlfriend in terms of love.

他经常用充满爱意的语言谈论他的女朋友。

Such as the melanocortins, the neuromedins...比如说黑素皮质素,神经调节肽

such as:例如；诸如

I know many of them, such as John, Peter, and Tom.

我认识他们当中的很多人，例如约翰、彼得和汤姆。

相关短语:

such as to达到这样的程度以致

Her madness is not such as to fill her mother with despair.

她还没有疯到令其母亲绝望的程度。

such as it is不过如此

This pudding,such as it is,is the best I can make.

布丁只能做成这样了，我尽了最大的努力。