二十一个

The dramatis personae of the story is a 25 years-old girl, called XiaoYu who is under the pressure of living. There is no trace of being young on her face any more.

故事梗概：故事的主人公小雨是一个二十五岁左右的女孩，由于生活的压力在她的脸上早已看不到这个年龄的女孩该有的光泽和朝气。

I will now cede the privilege of speech to a letter which lies before me, a letter written five and twenty years ago by an old pupil, now Madame la Duchesse de---- one of the most elegant women in Paris.

现在我让我手边的一封信来说话，这封信是二十五年前的一个寄读生写的，她今天是公爵夫人，巴黎最风雅的妇人之一。

A man's skin is approximately 20 per cent thicker than a woman's, and is typically firmer because it's richer in collagen and elastin.

一个人的皮肤，约百分之二十厚度大于一个女人的，和通常是坚定的，因为它的丰富的胶原蛋白和弹性蛋白。

Sometimes i felt an uncertain and unfathomable kind of sadness jast because of a scattered cloud in the wind, however, i'd even burst out laughing elatedly like a boor when i saw a young man in his twenties,(weidi was actually four years senior to me), shed his tears on the back of my hand.

有时为一朵被风吹散了的白云，会感到一种渺茫的，不可捉摸的难过；但看到一个二十多岁的男子把眼泪一颗一颗掉到我手背时，却象野人一样在得意的笑了。

For more than two decades the electron correlation induced metal-insulator transition and its characteristic has been one of the challenging problems in condensed matter physics.

近二十年来，一维关联电子系统吸引了人们的注意，特别是由关联而导致的金属—绝缘体相变以及它的一些特性已成为低维凝聚态物理领域中的一个有争议的热点。

To the next century, a 20's, the solar energy electricity generation cost has the possibility to reduce to the level which competes with the conventional electrovalence, widespread large-scale use solar energy and the renewable energy new times - solar energy time is approaching.

到下世纪的一、二十年代，太阳能发电成本有可能降低到与常规电价相竞争的水平，一个广泛的大规模的利用太阳能和可再生能源的新时代－太阳能时代正在来临。

Econometric and Mathematical Economics is rapidly developed as an embranchment of economics in China for more than twenty years.

二十多年来，数量经济学作为中国经济学科的一个分支，得到了迅速的发展。

And I believe it is also important to balance our lifes work with enjoyment of life.

我想要做的工作的量对于一个一天只有二十四小时的人来说是不切实际的。

I asked a friend working in shenzhen 20 years:"If you died, what do you intend to write the epitaph ?"

我问一个在深圳工作了二十年的朋友："如果你死后，你的墓志铭打算写点啥？"

I asked the friend who has worked in Shenzhen for 20 years,"suppose you have been dead, what are you going to record on your epitaph?".

我问一个在深圳工作了二十年的朋友："如果你死后，你的墓志铭打算写点啥？"

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。