〔R93〕  Why are washerwomen the greatest navigators of the globe?

〔譯註〕 為何洗衣婦是地球上最偉大的航海家？

〔提問〕 If the answer is “because they are constantly crossing the line (晾衣線/赤道) and running from ____ to ____,” what is the right word to fill in?

〔謎底〕  p___