通风。检查一下通风口或调风器，保证没有堵塞的东西。

Ventilation. Check the vents/registers and make sure there is nothing blocking them.

youdao

不要堵塞进风口或出风口，以免降低净化效果和损坏产品。

Please do not block the air inlet or outlet in case of reducing purifying effect and damaging the product.

youdao

当通风口被堵塞时，发动机就会停转。

When the vent became plugged, the engine would stop.

youdao

当通风口被堵塞时，发动机就会停转。

When the vent became plugged, the engine would stop.

youdao