He takes several learned journals and manages to be abreast of developments in his field.
He takes several learned journals and manages to be abreast of developments in his field.
他订阅了几本学术刊物，对本行最新的发展非常清楚。
He takes several learned journals and manages to be abreast of developments in his field.
他订阅了几本学术刊物，对本行最新的发展非常清楚。