不需要

First,the number of group members is not fixed in the setup phase and the group public key is unchanged.Second,an entity can join the group at any time and obtain a private signing key without refashioning other group members' private signing key.Third,the identity of the group signature can be open by the authority and the procedure of the tracing can be check by anybody.

该方案有下列特点：在建群阶段不需要确定成员的数目并且群公钥固定不变；任何时候实体都能通过群权威加入到群中获得签名私钥并且无需更新其他成员的签名私钥；能通过群权威揭示签名人的身份并且这一过程是可验证的。

A clear rendering of tacit processes eliminates the need to refer to the dubious reified realm of the unconscious, most famously advanced by Freud, but influential in much speculative theorizing outside psychology as well as within it.

对默会过程做了清楚的描绘之后，就不需要谈论弗洛伊德提出来的具体化的无意识领域了——它对心理学内外的思辨理论有着广泛的影响，但是不可靠。

We mustn't buy things we don't need,' I remarked.

&我们不应该买我们不需要的东西，&我发表意见说。

"We mustn't buy things we don't need," I remarked suddenly.

&我们不应当买我们不需要的东西，&我突然说。

We mustn't buy things we don't need,'I remarked suddenly.

&我们不应该买我们不需要的东西，&我突然发表意见说

We mustn't buy things we don't need,'I remarked suddenly.

&我们不应该买我们不需要的东西。&

Virtual computers can run alternate operating systems without the need for running a dual boot computer, and repartitioning your hard drive. Perhaps one would use it to simply surf the Internet on one copy of Windows XP that, if ravaged by spyware, can be deleted instead of having to rebuild their entire computer.

虚拟计算机可以运行候补作业系统，而不需要跑双启动电脑，并repartitioning您的电脑硬盘上，也许有人会用它来简单地在互联网上冲浪的一个正版的Windows XP ，如果遭受间谍软件，可以删除，而不考虑重建自己的整个计算机。

Advertising has us chasing cars and clothes, working jobs we hate so we can buy shits we don't need.

广告诱惑我们买衣服、买车子，做我们不喜欢的工作去买我们不需要的东西。

Cities in Amn and Calimshan commonly claim to be more civilized, but merchants who trade there all say that Neverwinter truly is civilized, unlike some showier rivals who, as the sage Mellomir once put it,"have achieved decadence without the need for passing through civilization first".

安姆和卡丽山的城市都主张发展文明，但来到这儿的商人都会说绝冬城才拥有真正的文明，不像一些喜欢卖弄的对手，贤者 Mellomir 曾经说过：&最文明的社会不需要颓废。&

We've established that a spacecraft on the moon will not sink in deeply, that an astronaut will not need snowshoes to stay on top.

我们已经证明，一艘太空船在月球上是不会深陷下去的，一个宇宙航行员踏到月球地上，不需要穿上雪鞋。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。