4 会走路的箱子 The suitcase could be able to walk！

①爸爸一手拿着票，一手拎着皮箱，准备进站。

①The dad is ready to get to the train station with his tickets and suitcase.

②检票员检票后让他进站了。

②The ticket-inspector let the dad get into the station after checking the ticket.

③爸爸刚走没两步，就被检票员喊住，他忙放下箱子，转身过去。

③The dad is detained by the ticket-inspector as he is making a move. The dad puts down the suitcase quickly and turns face to the ticket-inspector.

④箱子居然自己走起路来！“完了，全露馅儿了！”爸爸说道。

④The suitcase could even be able to walk！ “Ah！ It is revealed”, says the dad.