For service by post, an accepting institution must keep the postal certificate.

受理机构邮寄送达的，必须保留邮寄凭证。

youdao

One nice feature of WordPress 'post By Email feature is that the service automatically creates a gallery for posts with multiple pictures.

WordPress通过邮件发文功能中的一个贴心细节就是这项服务会自动为那些有多张图片的文章创建一个图册。

youdao

The set of operations supported by the service. (for example, POST, GET, PUT or DELETE).

服务支持的操作集合（例如 POST、GET、PUT 或 DELETE）。

youdao

The president then announced that the post office would,once again,be protected by the civil service laws.

VOA: special.2010.05.27

Amazon's LOVEFiLM will continue to rent Twentieth Century Fox titles on DVD, Blu-ray and Blu-Ray 3D via its LOVEFiLM By Post service.

ENGADGET: Lovefilm, Fox UK deal brings more TV shows next month, movie exclusives in 2013

Until October 1995 the company which was founded in 1907 and pre-dates America's parcel-post service by six years allowed only supervisors and managers to take part in its scheme.

ECONOMIST: Employee ownership

The DVD-by-post service, he said, would move to a new website, with a new billing system, and be renamed Qwikster.

ECONOMIST: Home entertainment