underground pedestrian walkway的用法和樣例：
例句
- The Bund Sight-seeing Tunnel is China's first cross-river pedestrian tunnel dug by hi-tech means.
外灘觀光隧道是我國第一條運用了高科技手段的越江行人隧道。 - The air-conditioned pedestrian subways of ETS Station will be equipped with travellators to provide greater convenience.
尖東站行人隧道內設有空調系統及自動人行道，方便市民使用。
