The single X button () will unapply selected manual mappings.

单个的 X 按钮（）就不会再选择手动的映射了。

youdao

How I can bind one of my buttons on control to X button that closes the window? I just want to create cancel button that just closes the window.

我怎么可以绑定我的一个按钮控制x按钮，关闭窗口吗？我只是想创建取消按钮关闭窗口。

youdao

Learnability also dictates that controller mappings should be consistent; if the X button is used for "yes" in one area of a game, it should always be used for confirmation throughout.

易学性还要求我们，控制的映射必须具有一致性；如果在游戏中的某个区域，X键代表的是“Yes”，那么它就应该由始至终的用来表示确定。

youdao

Underneath the middle of the rifle is the ammo clip, which acts as the X Button when pushed in, and handles reloading.

ENGADGET: blogger-avatar

Thankfully, recommendations can be culled using the new Dash's rating system -- thumbing the X button on the recommendation page allows you to pin an item, dismiss it or rate it out of five stars.

ENGADGET: Xbox 360 Dashboard update hands-on (fall 2012) Hands-on

Oh, we almost forgot -- they've boosted out the keyboard in favor of a more useful D-pad and A, B, X, Y button formation -- which is, needless to say, awesome for playing awesome games.

ENGADGET: Seabright PC430 "micro PC" spurns keyboard, not coolness