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what is it?
ocean
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ri_er
v
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"thùng rác"
bin
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l_tter
i
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"path"
con đường
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pick up
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what is it?
river
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"bờ sông"
bank
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clean
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dirty
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"dirty"
bẩn
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"dọn dẹp"
tidy up
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what is it?
tidy up
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what is it?
bin
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"clean"
sạch
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path
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what is it?
litter
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"xả rác"
litter
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"đại dương"
ocean
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pick _p
u
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what is it?
bank
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