今天我们要学的词是 warn against. To warn against 意思是建议不要做某事。With the summer heat in high gear, police are warning against leaving kids and pets in unattended vehicles. 随着酷暑天气的到来，警察警告大家不要把孩子和宠物独自留在车里面。Consumer Report warned against using spray-on sunscreen on children, saying it could put them at risk for asthma attacks. “消费者报告”建议不要给孩子用喷雾防晒霜，以免引发孩子的哮喘突发。好的，今天我们学习的词是 warn against, warn against, warn against...