Smile. Don't walk around all the time with a frown or even a neutral expression on your face.

学会微笑。不要总是愁眉不展，让脸部表情舒展自然。

youdao

The technology of either the neutral expression with STEP, or the networked data conveying with the core of XML, has its own characteristics.

以STEP为核心的中性文件数据表达技术，和以XML技术为核心的网络数据表达方式，各有自己的优点。

youdao

It includes some features of a general-purpose expression language and is designed to be a little language that can be used for application-neutral processing within XML systems.

它具备通用表达式语言的若干特性，旨在提供一种轻量型语言，可用于XML系统内与应用程序无关的处理。

youdao

They looked into the cameras with a neutral facial expression.

VOA: special.2009.11.24

It's no surprise that the doll, with its oversize forehead, neutral facial expression and enormous, alien eyes, didn't appeal to children.

FORBES: The Eyes Have It

In his ruling, Judge Sanders swatted aside free-speech arguments, saying the Texas statute prohibiting the unauthorized practice of law is "content-neutral" because it doesn't target the expression of any particular opinion.

FORBES: Arrest that software!