该地区报告了流感爆发。

An ___outbreak of flu was reported in the region.

战争的爆发扰乱了国际贸易。

The ___outbreak of war disrupted international trade.

作为一名全科医生，她在流感爆发期间不知疲倦地工作。

As a GP, she worked tirelessly during the flu ___outbreak.