When salt and pepper shakers are greasy to touch or half empty.

盐及胡椒瓶是油滑的，或是半空的。

youdao

Look at the picture closely: Is the glass half full or half empty?

仔细看图：杯子是半满呢还是半空呢？

youdao

The glass is half full or half empty depending on whether you 're pouring in or out.

半杯水是半满还是半空，主要看你是在倒水入杯还是出杯。

youdao

After a half-century,the search for extra-terrestrial intelligence, or SETI, has pretty much come up empty.

VOA: standard.2010.04.16

(SAYING) On the southern coast - known as the Costa del Sol - block after block of apartments lie empty or half finished, many of them designed for foreign buyers who have long since abandoned the idea of investing in Spain.

VOA: standard.2010.06.24

It depends on whether you see the glass half full or half empty.

CNN: Utopians? Dystopians? (Let's call the whole thing off)

So is the euro glass half full or half empty?

BBC: Are markets betting on IMF bailout of Italy?

But is the glass half full or half empty?

FORBES: Consumer Confidence Declining But Optimism Rising -- Two Important Statistics Missed