抗菌素的使用期限一般为1 -10天，这削弱了新药物开发的经济动力。
Antimicrobials are typically used for a period of one to ten days, decreasing the financial incentive for new drug development.
正确的目标应该是以最强烈的责任感并用最经济的造价去投入最好的、最为广泛需要且使用期限久远的基础设施建设。
The goal should be to create the best and broadest necessary and permanent infrastructure for the most responsible minimal price needed to build it.
正确的目标应该是以最强烈的责任感并用最经济的造价去投入最好的、最为广泛需要且使用期限久远的基础设施建设。
The goal should be to create the best and broadest necessary and permanent infrastructure for the most responsible minimal price needed to build it.
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