<p style="font-size: 12px;color:#aaa;">版权引用：<a href="https://www.pexels.com/photo/rotherhithe-tunnel-ventilation-shaft-3-the-rotherhithe-tunnel-was-constructed-between-1904-and-1908-and-both-the-tunnel-and-air-shafts-were-designed-by-the-engineer-sir-maurice-fitzmaurice-11916636/"><span style="font-size: 12px;color:black;">“Rotherhithe Tunnel ventilation shaft 3 - The Rotherhithe Tunnel was constructed between 1904 and 1908 and both the tunnel and air shafts were designed by the engineer Sir Maurice Fitzmaurice.”</span> </a>由 <a href="https://www.pexels.com/@russ-bradbury-200025550"><span style="font-size: 12px;color:black;">Russ Bradbury</span></a> 授权许可 <span><a href="https://www.pexels.com/photo-license/" target="_blank" style="font-size: 12px;color:black;">Pexels License<img src="" style="display: inline-block;height: 16px;width: auto;"></a></span></p>