Down by the station

Down by the station
Early in the morning
See the puffing¹ little engines
All in a row
You can see the engineer
Pull a little handle
Choo! Choo! Toot! Toot!
Off they go
Repeat

1 puffing   

v.使喷出( puff的现在分词 )；喷着汽（或烟）移动；吹嘘；吹捧

参考例句：

• He was puffing hard when he jumped on to the bus. 他跳上公共汽车时喘息不已。 来自《现代汉英综合大词典》
• My father sat puffing contentedly on his pipe. 父亲坐着心满意足地抽着烟斗。 来自《简明英汉词典》