It had an extremely tiny head and, by inference, a tiny brain.它的头极小,由此推断其脑容量也非常小。The full extent of the damage can be gauged only by inference.全部损失只能靠推断测定。Its existence is only known by inference.它的存在只是推断出来的。He was portrayed as a hero and, by inference, Thompson as the villain.他被描写成英雄,由此推论,汤普森则成了恶棍。