角色扮演

Streptococcal pyrogenic exotoxin B is a cysteine protease and carried by every strain of Streptococcus pyogenes. SPE B has been shown to play an important role in invasive group A streptococcal infection.

链球菌致热性外毒素B 是一种cysteine protease，所有A群链球菌都携带致热性外毒素B之基因，在A群链球菌侵入性感染的病程中，致热性外毒素B扮演一个重要的致病角色。

Expansionary fiscal and monetary policies also played a role.

扩张性的财政与货币政策也扮演了角色。

Expectedly, knowledge plays an important role in our life.

可想而知，知识在我们的一生中扮演一个重要的角色。

Our country is a developing country with transition economy. We should choose "government driving" pattern in our construction of credit system and culture of trust in securities market. In this construction, government should play the role of driver, programmer, designer, starter, jurist, explainer, executor, and the protector of social vulnerable groups.

我国是转制型的发展中国家，在证券市场信用制度和诚信文化的建设中，应选择政府驱动模式，政府在证券市场信用制度和诚信文化建设中应扮演驱动者、规划和设计者、启动者、法律法规的制订者、解释者和执行者，弱势群体维护者的角色。

International factoring has developed quickly and play a important role in international trade with the rapid development of information and communication technique.

随着国际贸易中买方市场的形成和信息技术的迅猛发展，国际保理在国际贸易中扮演着愈来愈重要的角色。

In the last part of the paper, we construct a family of 2 parameter cubic algebraic curves interpolating two given endpoints and two given tangent lines and two given curvatures at these two endpoints with different initial cases in detail.

引 言三次参数曲线在计算机辅助几何设计与计算机图形学领域一直扮演着十分重要的角色，这主要是由于三次参数曲线是具有奇异性的次数最低的曲线，这些奇异性包括尖点、拐点和闭圈。

Yes, other factors contributed, like the role of Fannie and Freddie in particular.

当然，其中也有其他因素的影响，比如房利美和房地美扮演的角色。

I found myself cast suddenly in the role of pig's friend and physician-- a farcical character with an enema bag for a prop.

于是，我突然发现自己扮演了一个滑稽的角色：猪的朋友兼医生——拿着灌肠袋当道具。

The show's writers play a huge role, too, with fastidiously crafted scripts that, by comparison, leave most sitcoms in the dust.

这个影集的编剧也扮演重要角色，精心刻画的剧本，相形之下使大部分情境喜剧灰头土脸。

Xiao Hong mainly acted in two roles in the earlier life period,one was the daughter who subordinates to the feudal family father power rule. The other was the wife who was attaches under the husband status.

萧红在生命的前期主要扮演两种角色，一种是隶属于封建家庭父权统治的女儿，另一种是依附于丈夫身份下的妻子。

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％。