Three visitors to London climb up the tower that houses Big Ben and decide to have a contest.
三个游客到了伦敦，爬上有大本钟的那座塔，然后决定来一项比赛。
They’re going to throw their watches off the top, run down the stairs and try to catch the watches before they hit the ground.
他们要从塔顶将他们的手表扔下来，跑下楼梯，尽力在手表落地之前抓住。
The first tourist throws his watch, takes three steps and hears his watch crash. The second throws his watch and takes only two steps when he hears his watch shatter.
第一个游客扔下手表，跑了三级楼梯，就听到手表摔在了地上。第二个游客扔下手表，只跑了两级楼梯，就听到了手表摔碎的声音。
The third tosses his watch off the tower, jogs down the stairs, goes to a candy store, buys a snack, walks back to Big Ben and catches his
watch.
第三个游客将手表从塔顶扔下来，小步跑下楼梯，去了一家糖果店，买了一份小吃，返回大本钟，刚好接住他的手表。
“How did you do that?” asks one of his friends.
“你是怎么做的？”他的一个朋友问道。
“My watch is 30 minutes slow.”
“我的手表慢了30分钟。”
