听力原文:W: Excuse me, could you tell me what this thing is for?M: Oh, that's for picking
听力原文:W: Excuse me, could you tell me what this thing is for?
M: Oh, that's for picking up heavy dirty things.
Q: What's the thing they are talking about?
(4)
A.A special car.
B.A washing machine.
C.A cleaner.
D.A robot.