变老

As individuals age, the dark pigment in the shell fades, producing a lighter coloured shell .

当个体变老，甲壳中的黑色素会变多，四肢和头部呈钝形。

I would be more optimist when I get old.

当我变老的时候，我变得更乐观。

Accept certain inalienable truths: prices will rise, politicians will philander, you too will get old; and when you do, you'll fantasize that when you were young, prices were reasonable, politicians were noble, and children respected their elders.

接受一些不变的真理，价格会上升，政治家会说谎，你也会变老，然后你会幻想你年轻的时候价格是合理的，政治家是诚实的，孩子们是尊重老人的。

Accept certain inalienable truths: prices will rise politicians will philander you too will get old; and when you do you'll fantasize that when you were young prices were reasonable politicians were noble and children respected their elders.

接受一些不变的真理，价格会上升，政治家会说谎，你也会变老，然后你会幻想你年轻的时候价格是合理的，政治家是老实的，孩子们是尊重老人的。

As a critic gets older,he or she usually grows more tetchy and limited in responsesJames Wolcott

当一个批评家变老，他或她通常变得更易怒而且反应有限詹姆斯·沃尔科特

As a critic gets older , he or she usually grows more tetchy and may even become a big league scold .

当一个批评家慢慢变老的时候，通常会变得更为暴躁，甚至会成为一流的骂街者。

Nobody grows old merely by a number of years. We grow old by deserting our ideals.

没有人仅仅因为时间的流逝了变老，我们变老是因为我们放弃了理想。

Everything you do is either rejuvenating or aging you.

你所做的任何事情不是让你变年轻就是让你变老。

We begin to lose calcium from our bone cells by the time we are 50 years old. Our benes get weaker and can break more easily. This condition is called osteoporosis. The older a person is, the more calciuns is lost.

在这段文字中，根据前后句的理解，当人变老时，骨骼里的钙会慢慢流失，骨头变脆、易断，因此，我们就可以推断出 osteoporosis 的意思是&骨质疏松&。

The moving muons are like the grandfather, they are the ones performing the round trip journey and experiencing all the forces needed to steer them on their course and bring them back to their starting point.

运动的介子就像祖父，他们做着圆周运动，承受着用来保持运动状态和回到初始位置的所有受力，静止的介子就像孙女；它们的以正常的速度变老，比运动的那些要老得更快或&死&得更早。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。