题目内容：

in recent years还是in the recent years?如果不是那一个,那为什么那一个不行?

优质解答

in recent years 最近几年中 Coronary artery bypass grafting has made great progress in recent years. 近年来冠状动脉旁路移植术有了很大的进展. This paper reviewed the research progress in synthesis of ci...