剑桥词典written abbreviation for proprietary , used in the names of private companies in Australia , New Zealand, and South Africa whose owners are responsible for only a limited amount of the companies ' debts （澳大利亚、新西兰和南非的）私营公司（proprietary的缩写） Mackenzie Investments Pty 麦肯齐私营投资公司 返回 Pty