学习策略在近二三十年来一直被许多学者所关注。
In the last few decades, many researchers have been focusing learning strategies.
近二三十年来，剖宫产率在世界范围内不断升高。
The cesarean section rate (CSR) has risen dramatically in almost all countries in the world over the last 30 years.
抗逆力是近二三十年来欧美国家青少年研究领域的一个热点问题。
The resilience is a hot topic of adolescence research in Europe and American in recent decades.
近二三十年来，各国编制了大量的水文地质图，积累了极其丰富的经验。
Many countries have produced the hydrogeological maps and accumulated a wealth of experience in the last two or three decades.
压弹是近二三十年来西方心理学研究的重要领域，它是指个体在面临逆境时维持积极适应的过程。
As an important domain of western psychology study during the last thirty years, resilience means the positive course of keeping adapting among individuals in face of adversity.
压弹是近二三十年来西方心理学研究的重要领域，它是指个体在面临逆境时维持积极适应的过程。
As an important domain of western psychology study during the last thirty years, resilience means the positive course of keeping adapting among individuals in face of adversity.
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