It's double-sided, it has a sharp edge both sides, and it's symmetrical.

它有双面，两侧边缘都很锋利，而且相当对称。

youdao

The good squeezes out the bad, so you’re left with a double-sided win: You get rid of things that are bad for you and you make room for things that are good for you.

用好东西挤走坏东西，如此，你将获得双赢：你在脱离了坏东西的同时也为好东西留下了空间。

youdao

The good squeezes out the bad, so you're left with a double-sided win: you get rid of things that are bad for you and you make room for things that are good for you.

用好东西挤走坏东西，如此，你将获得双赢：你在脱离了坏东西的同时也为好东西留下了空间。

youdao

For pan-Americana, the meaning of value is a double-sided ideal, as political as it is economic.

FORBES: The United States of Shopping Makes Peace Not War

The uncanny fusion of actual and virtual space utilizes dual stereoscopic projections, mirrors, a double-sided projection and game engine software customized by the artists.

ENGADGET: Museum of The Moving Image plans multi-million dollar updates with HD, 3D

They later produced a single-sided, double-layered version with 7.4 gigabytes, which could play back a 135-minute movie without interruption.

CNN: ASIANOW - Asiaweek