tutorial在线

Subway systems are uncomfortably hot — and worsening. As above-ground temperatures rise, below-ground thermal complaints increase. London’s Underground hit 47°C inside its tunnels in 2008, a figure that exceeded the highest surface temperature ever recorded in the city, which reached 40.2°C (104°F)

2026年1月17日 · 王芳 · 来源：tutorial在线