由于基座模型按年更新，用一年训练投入换出来的模型其实只有一年的服役期。这种情况下，模型的经济性，部分可以通过模型当年的直接、间接创收，对比上年的模型训练投入金额，来看模型的经济性。
According to the authority, there is an annual cost of at least £200,000 to procure the system, but the Department for Work and Pensions confirmed the full cost could be covered by the government's new Crisis and Resilience Fund.
，这一点在体育直播中也有详细论述
and then any time I want the length, get it:
深入伏牛山村庄，看到非洲媳妇来中国农村定居，通过直播带货把伏牛山的山乡好物推向全球。开放与合作在伏牛山深处生根发芽。