一双

In particular, the system generates bifurcation when 2c-a=0, and then the stable knot bifurcates a hyperbolic saddle point and stable convergence, which is so-called Pitchfork bifurcation. From 2c-a≤0 to 2c-a≥0, the attracting set A of the system is changed from single point to the union set of two different old orbits.

系统在2c-a=0时产生分岔，其稳定的结点分岔出一双曲鞍点和两个稳定的汇，这就是Pitchfork分岔，可见在2c-a≤0变化到2c-a≥0时，吸引集A从单点集变成为连接P和P的两异宿轨道的并。

When the due dates are identically distributed, a problem with bicriterion objective function is also considered.

交货期同分布时，对一双目标函数的调度问题给出了最优工件排序。

You always use a pair of eyes looked black and white world, a world of luxury impetuous.

你总是用一双黑白分明的眼睛打量着这个世界，一个奢华浮躁的世界。

He had a big head, but memorized cloudy and thought imprecisely.

他有一双眼睛，但看的不很清楚；有两只耳朵，但听的不很分明；有鼻子和嘴，但他对于气味和口味都不很讲究；他的脑子也不小，但他的记性却不很精明，他的思想也不很细密。

Hold in one's arms; hug; embrace

这人长了一双斗眼。

Verb hold in one's arms; hug; embrace

这人长了一双斗眼。

Mr Liu tells a reporter, before he in the belief that the commendation of a merchant, in the mail-order on the net a pair of dermal leather shoes, but just discover in one's hand, dermal leather shoes is inferior leatheroid apparently, and before the merchant that vow solemnly also the inquiry of or else reply Mr Liu, this makes Mr Liu depressed unceasingly.

刘先生就告诉记者，之前他因为相信一个店主的推荐，在网上邮购了一双真皮皮鞋，可是到手才发现，真皮皮鞋很明显是劣质的人造革，而之前信誓旦旦的店主也再不回复刘先生的询问，这让刘先生郁闷不已。

I still remember that four years ago, when I looked at this strange world with curiosity and infantility, I was so afraid of talking and communicating. But now, I can talk with foreigners fluently, I can speak here freely.

还记得四年前我睁着一双好奇而幼稚的眼睛，打量着这个陌生的世界，羞于张口，怯于交流，而今天，我可以与外教自如地交流，可以站在这里慷慨陈词。

Dr. Hans-Guenther Wagner is a small, energetic man with an infectiously enthusiastic smile. A native of the central German city of Kassel, Dr.

汉斯·古瑟·瓦格纳博士身材不高，却精力充沛，有着一双淡蓝色的眼睛，他的笑容很富有感染力。

Tea ball infuser shaped as pair of tongs.

该滤茶器的形状像一双夹具。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷