jīqì shēngyīn bù yídìng bǐ rén qīngchu, tèbié shì zài lùkǒu, suìdào hé gāojià fùjìn

机器声音不一定比人清楚，特别是在路口、隧道和高架附近。

Automated voices are not necessarily clearer than human voices, especially near intersections, tunnels, and elevated roads.