深圳又有两家学校的跑道被检出含有有毒物质，还有八家学校的跑道在接受检测。请看本报周五的报道：

    The running tracks at two more schools in Shenzhen have been confirmed to contain toxins while those in eight other schools are listed as suspicious and are undergoing tests.

    The city’s education authority is scrambling to cope with surging complaints from students who reported symptoms possibly linked to the tracks.

    The city’s education bureau checked all polyurethane running tracks built after 2013 at 345 schools around the city after it was discovered that the running track at Meilian Primary School contained toxins.

    报道中的toxin就是“毒素”，形容词是toxic (有毒的)。例如：

    Lead is a systemic toxin that affects nearly every organ system in the body.

    铅是一种全身性毒素，能影响几乎所有人体器官组织。