If the open air, it is best to open humidifier.

如果开空调，最好开加湿器。

youdao

If you are lucky enough to see the bridge with its two arms open high in the air, you will never forget it.

如果你有幸看到这座桥张开双臂高举在空中，你将永远不会忘记它。

youdao

They again ate outside, for Clara had to be in the open air all day, if possible.

他们又在外面吃饭了，因为克拉拉如果她可以的话，一整天都会待在露天里。

youdao

It's going to take place in there. It's going to be a constant pressure, it might be open to the air, or even if it isn't, there might be plenty of room, and it's a liquid anyway, so the pressure isn't going to change significantly.

也许它是液体，它在这个位置,这是恒压的，它也许是连通大气的，就算不是，它也有，足够的空间，而它是液体,压强不会显著地改变。

麻省理工公开课 - 热力学与动力学课程节选

If we were to move - the open air market they would have to buy lorries and vans to get the produce from wherever we finish up, up to their place.

BBC: Current Birmingham Wholesale Market site 'ideal'

The germ of open political debate, if not of unfettered democracy, is in the air.

ECONOMIST: Democracy in the Middle East

Prof Kevin McConway, a statistician at the Open University said, based on the findings, if Newcastle were to halve its current particulate air pollution level it would lead to two or three fewer low weight babies out of the total 3, 500 or so born in the city each year.

BBC: Traffic fumes linked to lower birth weight