had to retool the city's economy.
不得不改革城市的经济体制
…)
换工
；(…)换机械设备
had to retool the city's economy.
不得不改革城市的经济体制
perhaps one can even retool for the afterlife.
也许人们甚至可以为死后做准备。
he likes to retool the old stories to make them relevant for today's kids.
他喜欢改编老故事使其适
儿童。
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