《徐霞客游记·粤西游日记十四》
这一天热雨不时发作，热气蒸腾闷热得十分厉害，船夫摇桨，时走时停，所以终日的力量，所走的路不多。
是日暑雨时作，蒸燠殊甚，舟人鼓掉，时行时止，故竟日之力，所行无几。
It was a hot and rainy day, and the heat was so intense that the boatmen rowed their oars, sometimes walking and stopping, so they didn't go far with all their efforts that day.