Any required or optional service data inputs and outputs.

任何被要求或者可选的服务数据输入和输出。

youdao

He said diners drank only water and never paid the optional service charge.

经理表示餐厅的客人只饮用水，也不会付任何其他服务费用。

youdao

As an optional service, we have the capability of tracking cylinders to and from customers.

作为一项可以选择的服务，我们有追踪来往于消费者的钢瓶的能力。

youdao

The detachable unit consists of a 3.5-inch LCD which gets its navigation information from an SD card, and if you opt for TomTom's optional service package it'll provide real time traffic info as well.

ENGADGET: Eclipse's AVN 2210p apes TomTom One's portable style

Nominet, the organisation that oversees UK web addresses, has put the brakes on plans to launch an optional new service for sites ending with ".uk".

BBC: Shorter .uk web address idea shelved by Nominet

The app also features an optional upgrade service from Evoz that provides advanced monitoring, cry notifications via text or email, cry history information, and analysis of baby's crying and sleep patterns.

ENGADGET: Belkin WeMo Baby monitor lets you listen to Junior via an internet connection and an iOS device