mid-70sCOCA⁶⁸³⁹²BNC⁵⁹⁴¹¹iWeb³⁴⁷⁸⁵Economist⁵³⁵⁸¹⁺¹ 例句 Americans instinctively associate the values of experimentation and reform with youth, but Deng was in his mid-70s when he embarked on this breathtaking change of course. 美国人总是本能的把实验性价值观和改革同年轻人联系起来，但邓启动他那划时代的变革进程时，已经是七十多岁的老人。 yeeyan