The US Center for Disease Control estimated that the number of H1N1 infections in the US was 140 times the official number.
美国疾控中心估计，美国的H1N1实际感染人数是官方数据的140倍。
Some ingredients found in sunscreens like oxybenzone are designed to protect the skin but may lead to cancer, according to a study by the US Center for Disease Control.
据美国疾控中心的一项研究表明，防晒霜中的某些化学物质一旦被皮肤吸收就会成为致癌因子。
The outbreak was caused by travelers who became infected in 10 overseas countries - then returned to the US and infected others, according to the US Center for Disease Control and Prevention.
美疾病管制局认为，这次疫情爆发的原因是旅行者在境外感染后回国并传染他人，有10个国家可能是感染源。
应用推荐