每一种语言都是自成一体的。

A language is itself just because the way it is.

南宾夕法尼亚仍是一个自成一体的世界。

Southern Pennsylvania is still a world unto itself.

军队从来都是一个自成一体的社会。

The army's always been a society unto itself.

得承认这只是一种理论，但其各部分自成一体。

It's only a theory, admittedly, but the pieces fit together.

与传统海关相比，新关的洋员录用制度自成一体，具有许多鲜明的特点。

To compare with the Traditional Customs, the New Customs has another bright Employment System.