奇速英语时间阅读3级：这只聪明的狗掌握了一项技能——拉雪橇
难句解析#0:a:2:c:9:0:9:d:a:c:6:2:4:c:6:c:5:c:5:c:9:6:6:0:8:d:d:e:c:f:7:e#【本文章内容摘选奇速英语时文阅读原创部分内容（未经授权，不能转载）】2014.animal.fun.ropes.it.said.longer.times.
难句解析#0:a:2:c:9:0:9:d:a:c:6:2:4:c:6:c:5:c:5:c:9:6:6:0:8:d:d:e:c:f:7:e#【本文章内容摘选奇速英语时文阅读原创部分内容（未经授权，不能转载）】2014.animal.fun.ropes.it.said.longer.times.