America has expanded its corporate safety net in unprecedented ways, from commercial Banks to investment Banks, then to insurance and now to cars, with no end in sight.
美国铺开了一张规模空前的企业无忧网，从商业银行到投资银行，再到保险公司，现在则是汽车业，无休无止。
No other unit or individual may engage in the commercial insurance business.
其他单位和个人不得经营商业保险业务。
Without commercial prosperity, multifaceted in formations and solid investment that scientific research activities needed will have no insurance.
没有繁荣的商业，科研活动所需要的多方面信息、雄厚资金等都难以得到保证。
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