如若不然，则确保窗户是打开的。

If not, make sure you open the Windows.

youdao

如果可能，在室外晾干衣物。如若不然，则确保窗户是打开的。

Dry your washing outside, if possible. If not, make sure you open the Windows.

youdao

当你要吸烟的时候，确保窗户是打开的，或者房间的通风状态良好。许多人不喜欢烟味。

When need to smoke, you must sure the window open and the room breezy, for most of people hate smoke.

youdao

That's not meant to be a bad word but suggests being influenced, one might say, in the sense of "open the window and influenza," by those signs that precede it.

这不是个不好的词，只是想要表达影响的意思，人们可能说将一个符号之前的符号称作是“,“打开了窗户，引发了流感“

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