爵士乐唱片促进了美国文化的传播。

Jazz records fostered the ___spread of American culture.

应采取更多措施来阻止这种疾病的传播。

More should be done to stop the ___spread of this disease.

社交媒体加速了这条新闻在全国的传播。

Social media accelerated the ___spread of the news across the country.