The investigation uncovered evidence of a large-scale illegal trade in wild birds.调查发现了大规模非法交易野生鸟类的证据。The illegal trade in animal products continues to flourish.野生动物制品的非法交易仍旧猖獗。We must take action to stop this illegal trade in ivory.我们必须采取措施，阻止这种非法的象牙交易。The illegal trade in animal products continues to flourish.动物产品的非法贸易依然猖獗。