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Book 4 · roots 241–250
Economy, Industry & Technology
Rolling, pouring, filling, weight, thrusting, burning, falling, seeking and plunging — the roots behind factories, markets and machines.
অর্থনীতি, শিল্প ও প্রযুক্তির দশটি মূল — কারখানা, বাজার ও যন্ত্রের ভাষা
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Economy, Industry & Technology
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