第78页

信息发布者：
Rubbish
room
put rubbish in the bin
eating
sweep
keep
slips
捡起
步行回家
使地板变脏
为了保持公园清洁
No, I/We can't.
Rubbish.
I can sweep the floor.
messy and dirty
Rubbish
dirty
put rubbish in the bin 
sweep the floor.
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