The academic circles begin to research it in the last few years.
学术界最近几年才开始对其进行研究。
It is 5 years since his retirement, but he has remained active in the academic circles.
尽管他已经退休5年了,但他在学术界仍然很活跃。
It has been 5 years since his retirement, but he remains active in the academic circles.
尽管他已经退休5年了,但他在学术界仍然很活跃。
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