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Watch and choose
What signs do they see ?
A
B
H
D
E
F
G
C
Read and learn
No littering.
禁止乱丢垃圾.
No eating or drinking.
禁止饮食.
No smoking.
禁止吸烟.
smoke
Wet floor.
door
湿地路滑.
little 小的
at a shopping center购物中心
Wet floor.
Where do they see it？
What sign is it?
What does it mean？
It means the floor is wet.
What should they do？
They should be careful.小心