next-generation

新式的（形容词）

(adjective) Describing something that is far more advanced than others of its type, and, usually that is based on very recent developments in new technology.

EXAMPLE: The company's imaginative engineers are working on next-generation computers that can be worn on the wrist like a watch.

公司富有想象力的工程师正在研究新一代计算机，这种计算机可以像手表一样戴在手腕上。

snail mail

通过邮局传递的邮件

Informal expression referring to normal mail sent by way of the postal service, as contrasted with e-mail, which is sent digitally.

EXAMPLE: I normally send e-mail messages to my clients, but I often use snail mail to send important documents, such as contracts that must be signed.

我通常给我的客户发送电子邮件，但我经常通过邮局发送重要文件，比如必须签字的合同。