Construction well underway on subway linking Beijing and Hebei

①China's digital economy accounts for nearly 40 percent of GDP ②Work begins on subway linking Beijing, Hebei ③Twitter sacks over 50% of staff as Musk launches overhaul ④Australians expected to spend big in upcoming "Black Friday" sales ⑤Mexico launches bid for 2036 Summer Games ⑥Kenya targets 100,000 tonnes of avocado exports to China annually ⑦Scientists finally agree, smiling makes us happier