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Ví dụ
She doodles in the margins of her notebook during class.
Whenever she's on the phone, she doodles on a scrap of paper.
The student doodles on the back of his exam paper while waiting for time to be up.
During the meeting, he doodled on his notepad to pass the time.
They doodle on napkins while waiting for their food to arrive at the restaurant.
