it lowers the costs of many services
它降低了许多服务的成本
以上为机器翻译结果，长、整句建议使用 人工翻译 。
It lowers the costs of many services: without advertisements your daily newspaper would cost four times as much, and travel by bus or underground cost 20 percent more.
它降低了许多服务的成本，没有广告你每天买报的支出是现在的四倍，而乘公交车或地铁的费用也要上涨20％。
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