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更新日期:2026-08-14
at sb’s cost由某人出钱;损及别人:A chemist bought some instruments and chemicals at his friend’s cost,who was a rich man and wished to help him.一位化学家,由他的朋友出钱,买了一些仪器和化学药品,他的朋友是个富人,愿意帮助他。