人群兴奋不已，气氛热烈。

The crowd was ___buzzing with excitement.

夏天正值高潮，城市里活动繁忙，充满活力。

Summer was getting into full swing and the city was ___buzzing with activity.

宣布之后，整个学校充满了猜测和兴奋。

After the announcement, the whole school ___buzzed with speculation and excitement.