名词

1. the act of supplying fresh air and getting rid of foul air

[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;Synonym: airing

2. the bodily process of inhalation and exhalation
[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation

[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;Synonym: breathingexternal respirationrespiration

3. a mechanical system in a building that provides fresh air

[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;e.g. she was continually adjusting the ventilation

[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;Synonym: ventilation systemventilating system

4. free and open discussion of (or debate on) some question of public interest

[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;e.g. such a proposal deserves thorough public discussion

[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;Synonym: public discussion