roar back短语¹⁴⁴⁹⁷²⁺² 例句 It is an old issue that returns each winter as the cities' furnaces roar back into use to deliver central heating, and temperature inversions settle over the North. 这是一个每年都会重提的老问题。一到冬天，城里的锅炉就再度轰鸣着投入使用，为北方的持续低温天气提供集中供暖。但是，今年的中国人比以往任何时候都要关注这一荒谬的困境。 yeeyan