玛丽安是一台漂亮的红色蒸汽挖土机。迈克马力甘成天和它在一起,他们开山辟路、挖通江海,是最形影不离的好朋友。可是有一天,新型挖土机出现了,迈克舍不得把它丢弃在破旧的砂砾坑里生锈、散架。他仍然相信玛丽安一天挖的土得100个工人辛苦挖上一周。那天,迈克在报纸上看到砰 Marianne is a beautiful red steam excavator. Mike horsepower together with it all day, they opened up roads, dig Jianghai, is the most formidable friend. One day, however, a new excavator emerged and Mike was reluctant to discard it in rusty and scattered stands in shabby gravel pits. He still believes that one day Marian digs up 100 hard-worker digs for a week. That day, Mike saw the bang in the newspaper