首先

First, I have two acoustics.

首先，我有两个音响。

First,I have two acoustics.

首先，我有两个音响效果。

Chapter 1 is the acquaintanceship of the Principle of debate This chapter is composed of four sects.

第一章辩论主义的认识——辩论主义的理论导入本章共分为四部分内容：首先，探究辩论主义的渊源；其次，分析辩论主义的概念。

Therefore, it's necessary for us to analyze and judge the dynamic characteristic of our country's investment cycle fluctuation action and the relationship between...

首先，我们采用时间序列的分解方法来描述和测度经济周期和投资周期；然后，我们采用相关分析方法来判断投资波动成分与经济周期成分之间的关联；最后，我们利用结构VAR模型来判断固定资产投资和实际产出之间的关系。文章最后根据上述实证得出结论，并给出相关政策建议。

Therefore, it's necessary for us to analyze and judge the dynamic characteristic of our country's investment cycle fluctuation action and the relationship between investment cycle and economic cycle.

首先，我们采用时间序列的分解方法来描述和测度经济周期和投资周期；然后，我们采用相关分析方法来判断投资波动成分与经济周期成分之间的关联；最后，我们利用结构VAR模型来判断固定资产投资和实际产出之间的关系。

Firstly, you notice an active volcano, surrounded by exotic trees, and the red evening sky over it.

首先，您会发现一座活火山，包围异国情调的树木，红色傍晚的天空。

First of all, I want to give you some details regarding my actual tasks.

首先，我想给你一些细节，就是我实际的工作。

The model of the embedded system was constructed by directed acyclic graph to obtain the objective function for hardware/software partitioning.

首先，使用有向无环图对嵌入式系统建模，得到软硬件划分优化系统的目标函数。

Firstly, I would like to underline the old adage "You get what you pay for".

首先，我要强调一句古老的格言："你得到你所支付"。

Firstly , the relation between human adaptability and social development is very close.

首先，人类的适应性与社会发展有密切的关系。

Hanna: That's over now, isn't it?

都结束了，对吗

You must be ill. You look so pale.

你一定是病了，你的脸色苍白。