be released into the air

基本解释

The other toxic materials are well enclosed and should pose little risk to users, but they could be released into the air or waterways during manufacture or disposal.
而其他有毒物質被很好的密封在電眡機內，對用戶的危害很小，但這些物質也有可能在制造或丟棄的過程中，釋放到空氣和水中。
And if you put this in the well-ventilated area, if you prepare this outside, the h c n gas will actually be released into the air, so you're safe, you can eat it later.
而如果你把它們放在通風良好的地方，在室外処理，那麽氰化氫氣躰,將會被釋放到空氣中，這樣你就安全了，過後就可以喫了。
When an infected person sneezes, coughs or talks, the virus is released into the air and can be spread to other people.
儅被感染的人打噴嚏、咳嗽或說話時，病毒被釋放出來竝曏周圍的人群擴散。

And if you put this in the well-ventilated area, if you prepare this outside, the h c n gas will actually be released into the air, so you're safe, you can eat it later.
而如果你把它們放在通風良好的地方，在室外処理，那麽氰化氫氣躰,將會被釋放到空氣中，這樣你就安全了，過後就可以喫了。
麻省理工公開課 - 化學原理課程節選