來上英文課，開始背單字囉！
看來有人為反而反，只看了一小段英文字就想幫人家上英文課，都沒去看手冊內倒底寫了什麼！
請把那一段的下一段內容看清楚！
The oily strip in the center portion that collects drippings from cars is usually no more than two feet wide. Unless the road is wet, the average center strip permits adequate traction to ride on safely. You can operate to the left or right of the grease strip and still be within the center portion of the traffic lane. Avoid riding on big buildups of oil and grease usually found at busy intersections or toll booths.