Antacids relieve pain by neutralizing acid in the contents of the stomach.抗酸药通过中和胃里的酸性物质来缓解疼痛。Our unit assisted in neutralizing the enemy artillery.我们部队参加了压制敌军炮火的行动。Antacids are alkaline and they relieve pain by neutralizing acid in the contents of the stomach.抗酸剂是碱性的，通过中和胃容物中的酸来减轻疼痛。