今天我们要学的词是 concussion. Concussion 名词，脑震荡。最新研究显示，The annual rate of concussions that send youth soccer players to the emergency room increased by nearly 1,600 percent from 1990 to 2014. 每年因为踢足球脑震荡去看急诊的孩子数量在1990到2014年间增长了16倍。U.S. Senator Richard Blumenthal called for the NHL to fund research into concussions and brain trauma. 美国联邦参议员理查德·布鲁门萨尔呼吁美国国家冰球联盟出资进行脑震荡和脑损伤的研究。好的，我们今天学习的词是 concussion, concussion, concussion...