Why does he cover the cup with the saucer?

干吗把茶杯碟放在杯子上面？。

youdao

The upper cover and base plate of energy-saving lamp cup are provided with holes for ventilation and heat dissipation, and the base plate is provided with a light tube hole.

节能灯杯上盖和节能灯杯底板上均设有通风散热孔，并且在节能灯杯底板上设有灯管孔。

youdao

I would see to her comfort, cover her shoulders with a warm shawl, keep her coffee cup filled to the brim.

我想看到她流露的欣慰，我会将暖和的围巾披到她的肩头，我会不断地将她的咖啡杯填满。

youdao

But the Everton boss revived his interest in Arsenal's 2005 FA Cup winner with defensive cover looking thin at Goodison Park following Neill's surprise exit and Tony Hibbert facing at least a month out with a hernia injury.

BBC: Arsenal's Philippe Senderos joins Everton on loan

Stick a Rise Above pin in it, then cover with a Come Together cup: the payroll tax cut is good and dead.

FORBES: Happy Higher Payroll Taxes

With the African Cup of Nations scheduled for early in 2010 Spurs decided that cover was needed for left-back Benoit Assou-Ekotto who was to represent Cameroon.

FORBES: Bale Comparisons With Messi and Ronaldo Don't Hold Up But .......