The bubble bursts: 

There is a sudden end to a good or lucky situation 

（好事或好運(yùn)）突然告吹，成為泡影；泡沫破滅

例句：

When the bubble finally burst, hundreds of people lost their jobs.

當(dāng)泡沫最終破滅時(shí)，數(shù)百人失去了工作。 

Bubble economy：

泡沫經(jīng)濟(jì)

例句： 

The economic crisis is the direct result of bubble economy. 

泡沫經(jīng)濟(jì)直接導(dǎo)致了這次經(jīng)濟(jì)危機(jī)。

Bubble (over) with something:

To be full of a particular feeling 

洋溢著（某種感情）

例句： 

She was bubbling over with excitement. 

她興奮不已。 

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