The content area is a with the ID content.

内容区域是一个，其ID为content。

youdao

Another header that you might want to set explicitly is content-id.

您可能希望显式地设置的另一个标头是Content - id。

youdao

Let's assume you want to add an attachment under a new Content-Id, Id2.

假设您希望在新的Content - Id Id 2下添加一个附件。

youdao

Let's assume you want to add an attachment under a new Content-Id, Id2.

假设您希望在新的Content - Id Id 2下添加一个附件。

youdao