buzz with life 活気にあふれる

APPEARANCES often deceive, but, in one respect at least, the visitor's first impression of Chicago is likely to be correct: this is a city buzzing with life, humming with prosperity, sparkling with new buildings, new sculptures, new parks, and generally exuding vitality.

dead set aganist 〜に断固反対で、〜に絶対反対で、〜に強く反発して、

He is dead set against anything you say. あいつはなんでもかんでも反対するんだ。
Inoue, 58, who runs his own construction business, isn't dead set against non-Japanese brands, including Samsung Electronics Co. of South Korea.