Emergency exit doors should be open freely (unlocked) in the direction of travel, and without any special knowledge to open.

紧急出口门均不能上锁，可以顺着疏散方向向前推开，无需运用任何特别开门知识。

youdao

But this is Thailand, we open freely especially the public event em... all I want to say... it's hard to stop people taking picture!

但是这是泰国，我们都是公开的，尤其是公众的事件…嗯…我想说的是，想阻止大家拍照是不可能的！

youdao

youdao

An open system, as the name describes, allows mass and energy to freely flow through the boundary.

开系，顾名思义，允许质量和能量自由地,流过它的边界。

麻省理工公开课 - 热力学与动力学课程节选

On Nov. 5 the Mountain View, Calif. search giant announced that it had cobbled together an alliance of 34 companies seeking to turn the mobile phone into a freely open computing device.

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Acunetix, which is marketed to organizations who want to test their own websites for vulnerabilities, offers a free version on its site, while Nikto is open sourced and also freely available.

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The resident mage is a student of astronomy and planetary science, so I decided the tower should have its own Foucault pendulum, attached to the 7th floor ceiling and swinging freely through open spaces in each floor below.

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