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câu hỏi		câu trả lời
take pains to do sth Even though they had argued previously, he took pains to be polite to her during the dinner party."The accountant took great pains to ensure that every figure in the audit was accurate before submitting it to the board." bắt đầu học		usilnie starać się(droga przez mękę)
at pains She was at pains to make the guests feel welcome."The director was at pains to explain that the layoffs were temporary." bắt đầu học		w bólach, zadać sobie wiele trudu

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