To supply with fresh air; to introduce and circulate fresh air in.

供给新鲜空气；使通风。

To expose to the air.

暴露于空气中。

To bring out (a subject) for public discussion.

公开讨论。

To talk openly and without reserve about (one's opinions, concerns, etc.).

公开发表(意见、关切等)。

To provide an opening in (a burning structure) to permit the escape of smoke and heat.

(在起火的建筑物中)开出火口、出烟口。