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Clean?
Dirty and messy!
['d?:ti]
肮脏的
['mesi]
乱七八糟的
The is .
air
dirty
Let’s discuss
The are .
streets
dirty and messy
Let’s discuss
The is .
river
dirty
The are .
fish
dead
fish(复数)fish
head
Let’s discuss
makes the air dirty.
makes the air dirty,too.
What makes the air dirty?
Smoke from cars
Black smoke from factories
Task 1
单数factory