2 sentences for 爆出 (bào​chū — burst out)

1. 人群中突然爆出一阵欢呼声。

   rén​qún zhōng tū​rán bào​chū yī zhèn huān​hū​shēng.

   A burst of cheering suddenly erupted from the crowd.

   Source: Dong Chinese Dictionary

2. 昨天的比赛爆出了一个大冷门，夺冠热门竟然输了。

   zuó​tiān de bǐ​sài bào​chū le yī gě dà lěng​mén, duó​guàn​rè​mén jìng​rán shū le.

   Yesterday's match saw a major upset; the favorite to win actually lost.

   Source: Dong Chinese Dictionary