The major disadvantages of the current learning methods are: (1) one-type cost assumption is not agreed with the actual case where there usually exist several types of costs;

这些学习方法存在的主要缺点有：（1）单一代价假设不符合现实存在的多种代价的实际情况；

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Since inflation seriously increases all types of costs, this will seriously influence all kinds of game balance elements and will especially influence the costs of the expensive corporations.

由于通货膨胀言重增加了各类开销，这将大大影响游戏的平衡参数，特别是公司的扩张。

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If every baby needed an affirmative defense of its citizenship status, then these types of costs would be borne by new parents in America.

FORBES: Ending Birthright Citizenship Would Be Costly for Americans

It is amazing that the costs of these types of drugs overseas is less, much less than here in the USA. Even when manufactured by the same company, they are considerably less in other countries.

FORBES: Geraldine Ferraro And The High Cost Of Cancer Drugs

The price you pay for a ticket is driven by a number of variables: competition, types of passengers, the route and operating costs.

WSJ: Decoding Airline Ticket Costs