Twice along the way , i check names against a list to make sure we haven ' t lost anyone , " he says . " some people walk so fast , much faster than me , so i have to make sure everyone travels at the same pace . 他說: “我會(huì)在行程中點(diǎn)名兩次,以因?yàn)椴糠蒹H子走得太快,透過點(diǎn)名便可以確保不會(huì)走失” 。