伯恩斯坦估计,已有18年历史的YouTube从用户身上每小时赚取的钱还不及Facebook或Instagram的一半。 In China, where short-form video took off a few years before it did in the West, short-video ads last year monetised at only about 15% the rate of ads on local e-commerce apps.For one thing, t...
经济学人:加州积雪融化或引发洪涝灾害 This winter, the U.S. state of California received unusually large amounts of rain and snow.Now, people worry that some areas will flood as the snow in the Sierra Nevada Mountains melts.Ron Caetano lives about half-way between the cities of Los Angeles ...