Banning mandatory retirement ages in the private sector (as America has done) looks sensible, as does creating conditions in which people can retire more gradually.

禁止私营部门的强制性退休(像美国已经做的那样)看起来是明智的，因为这会为人们逐渐退休创造条件。

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While many conditions are desirable, the following are mandatory.

满足的条件越多越好，但如下的几个条件是必须要满足的。

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The amount of insider information disclosure cost was studied on conditions of voluntary disclosure and mandatory disclosure.

分别在自愿信息披露和强制信息披露的情况下，研究了公司内部人的信息披露成本；

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Although popularly sold as a means of reducing overall health-care costs, the creators of the ACA knew that the inclusion of such provisions as the mandatory coverage of pre-existing conditions and the setting of premiums based on average costs rather than actuarial costs would necessarily increase the total cost of such coverage.

FORBES: With or without mandate, Affordable Care Act fails

This is especially true given that Section 921 of the Dodd-Frank Act provided the SEC with rulemaking authority to prohibit or impose conditions on the use of mandatory pre-dispute arbitration agreements.

FORBES: How Small Investors Can Win Against Wall Street

Electronic signs will also be mounted on verges and gantries displaying variable mandatory speed limits and information to warn motorists about incidents, lane closures or conditions ahead.

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