First, could you indent the first line of each paragraph?

首先，你能不能把每段的第一行缩排？

The first line of inquiry: What's happening to $counter?

首先要调查的是：$counter 发生了什么情况？

First, the first line on the site before positioning the direction of their own, that is, the positioning of keywords.

首先在网站上线之前定位好自己的方向，也就是对关键字的定位。

Choose the name of a boy or girl and use it at the end of the first line.

选择一个男孩或女孩的名字并将其用在第一行的结尾。

They broke through the first line of defense.

他们突破了第一道防线。

The first line of each paragraph should be indented.

每段的第一行应该是缩进的。

The barbican was the first line of defense for the ancient castle.

城堡的外堡是古代城堡的第一道防线。

The new guidelines recommend monotherapy as the first line of treatment.

新的指南推荐单药治疗作为一线治疗。

The first line enables blending.

第一行允许了混合。

The first line uses standard numerals.

第一行使用标准数字。