THE middle-aged man squatting in front of the blackboard didn't look up as I took his picture. He went on writing intently on the board, a small piece of chalk gripped between his dusty fingers. The...
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THE middle-aged man squatting in front of the blackboard didn't look up as I took his picture. He went on writing intently on the board, a small piece of chalk gripped between his dusty fingers. The...