有一年,一支英国探险队进入撒哈拉沙漠的某个地区,在茫茫的沙海里跋涉。阳光下,漫天飞舞的风沙像炒红的铁砂一般,扑打着探险队员的面孔。口渴似炙,心急如焚——大家的水都没了。这时,队长拿出一只水壶,说:“这里还有一壶水,但穿越沙漠前,谁也不能喝。” One year, a British expedition entered a part of the Sahara desert and trekked through the vast sand. In the sunshine, the wind and the sand flying like a red-hot iron sand, swatted the face of expedition members. Sore throat, anxious - everyone's water gone. At this time, the captain took out a kettle and said: “There is still a pot of water here, but no one can drink before crossing the desert.” "