Be sure to work in a ventilated area.

工作一定要在通风良好的地方。

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Then just make sure to hang the sweater to dry in a well-ventilated area.

接下来确保将毛衣挂在通风良好的区域晾干。

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Ditch the salad draw and pick a dry, ventilated area and keep it dark to avoid them sprouting.

将洋葱置于干燥通风处，选择一个黑暗的环境以避免洋葱发芽。

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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.

而如果你把它们放在通风良好的地方，在室外处理，那么氰化氢气体,将会被释放到空气中，这样你就安全了，过后就可以吃了。

麻省理工公开课 - 化学原理课程节选