I know this sounds airy-fairy, but there is truth to it.

我知道这听起来通风-童话，但存在的真理。

He was supposed to give us advice, but all he came up with were airy-fairy ideas.

他应该给我们提些劝告，但他所想出来的一切是不切实际的。

Be supposed to Eg. He was supposed to give us advice, but all he came up with were airy-fairy ideas.

他应该给我们提些劝告，但他所想出来的一切是不切实际的。

This may all sound a bit airy-fairy given that so many companies are struggling just to survive the recession.

在许多公司都在经济萧条中力求生存的情况下，这些听着有点不太切合实际。