首先

In the first place, extra studies bringabout unhealthy impacts on physical growth of children.

首先，额外的学习对孩子们的身体发育是不利的。

For, in the first place, it is agreed that if he did not bristle with vices, no more did he abound in virtues; and, in the second place, he enjoyed, not unrestricted power, but a sovereignty on like terms and equal dignity with Marcus, from whom he differed, however, as far as morals went, both in the laxity of his principles and the excessive licence of his life.

因为，首先，一般同意，他没有太多的恶习，不过他的德行也差不多；其次，他喜欢的不是无限制的权力，而是跟马尔库斯分享相似的权力和同等的尊严，虽然后者跟他完全不一样；然而，由于德行不够，他理性松弛，生活过度。

Firstly, research has been carried out on the definition and peculiarities of brittleness.

首先，针对复杂系统脆性的定义和特点进行研究。

With mathematical calculation on matrices, the transformation formula between tool and workpiece is obtain to build a kinematics model for rotary broaching.

首先，依据数学矩阵运算的方式，推导刀具与工件之间的座标转换公式，建立一套旋转拉孔的运动学模式。

First,some notions and applications of broadcasting technology in network are introduced.

首先，介绍了广播的概念和广播技术在网络中的应用。

First of all, the brokerage business is expected to drop about 40% of the year.

首先，经纪业务预计将下降约40％的一年。

First, you 'll need some old socks or brown paper bags.

首先，你与要一些旧的丝袜或者棕色纸袋子。

First of all, let's understand what brown sugar is.

首先，让我们了解什么是红糖。

First, click Browse and select the image on your computer that you would like to host with us.

首先，点击浏览并选择图片在您的电脑上，你想与我们所在。

First of all, we would like the boards to be wrapped in some type of bubble wrap.

首先，我们希望这些介面卡要用气泡包装纸包起来。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。