From a Hubble analysis of the stars' colors, Crockett and his team calculated that the star-formation boom started about a billion years ago, a comparatively recent event in cosmological history.

通过哈勃行星分析行星的色谱，科洛·科特和他的小组计算出这些恒星的形成大约在1亿年前突然爆发起来，通过在宇宙学历史上与最近的大事件的比较。

youdao

In the Lagoon Nebula, for example, infrared pictures have revealed a boom of star birth in the past five years, indicating that the region is still growing its collection of stars.

举例来说，在这张蓝色珊瑚照片中，红外线照片显示了在过去5年中恒星诞生的繁荣景象，表明这个地区仍然聚集很多恒星。

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The construction boom was so big that Sanya has the greatest concentration of five-star hotels in all of China.

由于建筑业蓬勃发展，三亚已经成为中国五星级酒店最集中的地区。

youdao

Mr. Hinde insists Yao Family Wines isn't a short-lived bid to capitalize on China's wine boom and the star's celebrity before either of them wane.

WSJ: Yao Ming Takes Aim at China Wine Boom

The city has experienced a recent boom of five-star restaurants, cafes, and even hip nightclubs.

CNN: This month on Inside the Middle East

Meanwhile, the poster child of the boom, Ratio, has seen its star fade after authorities launched a criminal probe of the company's relationship with an Israeli wanted by the U.S. on racketeering and conspiracy charges.

WSJ: Big Gas Find Sparks a Frenzy in Israel