Well, GPTn probably it's not even clear for the present systems.

- 嗯，GPTn 可能对于当前的系统来说还不清楚。

Is there a viable alternative to the present system?

【alternative】现行体制有没有切实可行的制度来替代？

Vaccines work by presenting the immune system with the foreign material of a pathogen.

疫苗通过向免疫系统提供病原体的异物来发挥作用。

Our research led us to the conclusion that the present system is unfair.

【lead】研究使我们得出这样的结论，就是现行的制度是不公平的。

Under the present system, we do not have any flexibility.

【system】在现行体制下，我们没有一点灵活性。

The objections of Dr. Davenant to this alteration in the present system of excise duties, seem to be without foundation.

Davenant 博士对现行消费税制度的这种改变的反对似乎是没有根据的。

Under the present system of management, therefore, Great Britain derives nothing but loss from the dominion which she assumes over her colonies.

因此，在目前的管理制度下，大不列颠除了对其殖民地的统治权之外，什么也没有得到。

Vaccines work by presenting the immune system with novel targets, so that it can learn to react to them if it comes across them again.

疫苗则是通过向免疫系统提供新的靶物质的方法起作用的，因此当免疫系统再次遇到这些物质时，它就会知道该如何作出反应。

Economists here will explain that while people are not especially happy with the present system, any further meddling with it is viewed with suspicion and anger.

经济学家解释说，虽然人们对现行制度不是特别满意，但任何对现行制度的进一步干预都会引起怀疑和愤怒。

The present system already rewarded him, as a result, most of his constitutional stands were made just as much out of self-interest as from ideological purity.

目前的体制已经让他得到了回报，因此，他的大部分宪法立场既是出于纯粹的意识形态，也是出于自身利益。

At just 15 years old, Braille presented his new system to his peers, and just five years later, he published the first ever book on Braille.

年仅 15 岁的 Braille 向同龄人展示了他的新系统，仅仅五年后，他出版了第一本关于盲文的书。

These are, perhaps, the principal commodities, with regard to which the union with the colonies might require some considerable change in the present system of British taxation.

这些也许是主要商品， 与殖民地联合可能需要对英国现行税收制度进行一些重大改变。

In the greater part of the libels which have been written against the present system of finances in France, the abuses of the controle make a principal article.

在针对法国现行财政制度的大部分诽谤中， 滥用控制权成为主要文章。

The complaint against the present system is not that these 9,000,000 men ought to be employed on different tasks, but that tasks should be available for the remaining 1,000,000 men.

对现行制度的抱怨不是这 9,000,000 人应该被雇用从事不同的工作， 而是应该为其余的 1,000,000 人提供工作。

Its mother evidently regarded it as the one chicken of the world, and as necessary, in fact, to the world's continuance, or, at any rate, to the equilibrium of the present system of affairs, whether in church or state.

它的母亲显然将它视为世界上唯一的一只鸡，事实上，它对于世界的延续来说是必不可少的，或者至少对于当前事务体系的平衡来说是必要的，无论是在教会还是国家。