Obesity, heart disease and diabetes are beginning to appear in a people for whom these have never been problems before.
肥胖、心脏病和糖尿病开始出现在以前从未出现过这些问题的人群中。
Those smaller parts can be used to form an infinite number of messages, including messages that are completely novel, that have never been expressed before.
单位小的信息能够用来组成无限数量的信号，包括那些以前从未表达过的全新的信号。
I have never been so insulted in my life!
我一生中从未被如此侮辱过！
Economists have never been more than lukewarm toward him.
经济学家们从未对他有过多少兴趣。
His intellect and mental agility have never been in doubt.
他的才智和头脑的敏锐从未被受到怀疑。
The profits made in the first year have never been matched.
第一年获得的利润这几年一直比不上。
They have never been actively encouraged to take such risks.
他们从未被积极地鼓励去冒这样的风险。
"Since I retired to this place," he wrote near the end of his life, "I have never been out of these mountains."
“自从退休到这里，”他在快到生命尽头时写到，“我从没出过这些山。”
They have never been to Africa.
他们从未去过非洲。
I have never been to Tenglong Cave. Neither have I.
我从来没有去过腾龙洞。我也没有。
我从未如此感动过。
Some places have never been filled in.
有些地方从未被填补。
We are now in a place we have never been to.
我们现在在一个从来没有到过的地方。
I have never been there, but I can well imagine it.
我从来没有去过那儿，但我完全可以想象。
Most of us have never been bitten by a snake or a spider.
我们大多数人都没有被蛇或蜘蛛咬过。
My boy, we need a carpenter here and I have never been one.
我的孩子，我们需要一个木匠在这里，而我从来都不是。
"I have never been there once, really," said Mary suddenly remembering.
“其实，我一次也没去过。”玛丽说，突然想起来了什么。
You will face problems in the aging of the population that have never been faced before.
你们将面临人口老龄化带来的前所未有的问题。
You will face the problems in the aging of the population that have never been faced before.
你们将面临前所未有的人口老龄化问题。
I have never been in a zoo where you could touch giraffes or get this close to elephants and hippos.
我从来没有来过这样的动物园，在这里你可以抚摸长颈鹿、也可以很近距离观察大象和河马。
Ducks have never been popular with farmers like my grandfather anyway because they sometimes destroy crops.
反正鸭子从来没有得到过像我祖父这样的农民的欢迎，因为它们有时会破坏庄稼。
Diamonds, an occasional component of rare igneous rocks called lamproites and kimberlites, have never been dated satisfactorily.
钻石是稀有火成岩（称为煌斑岩和金伯利岩）中偶尔出现的一种成分，其年代测定方法从未令人满意。
I have never been more serious.
我可是再严肃不过了。
但我从来都不是无趣的人。
我们从未如此接近根除目标。
I have never been more deflated.
当时我再泄气不过了。
I have never been very good at that.
但是对于我来说，我对那个从来都不擅长。
Viruses have never been so adorable.
病毒从没这么可爱过。
This is a market we have never been in.
这是个我们从未进入的市场。
The roses have never been so beautiful.
玫瑰从未如此娇艳。
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