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Từ điển Oxford Learners Wordfinder Dictionary
air passage
a duct that provides ventilation (as in mines) • Syn: air duct, airway • Hypernyms: duct • Hyponyms: register, snorkel, schnorkel, schnorchel, snorkel breather, breather, upcast, ventilation shaft • Part Meronyms: vent, venthole, vent-hole, blowhole
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