1 💰 商业科技 Ars Technica 2026-08-05 💬 China is Tesla's cash cow, but for how much longer? 特斯拉在华利润奶牛能挤多久？上海工厂产能与本土竞争的双重变局一探究竟。 Tesla's Shanghai factory is busier than ever but might be cut loose. 特斯拉 上海工厂 中国市场 电动汽车 商业风险