He’s spent years studying Roman archaeology, so he really knows his onions.
他研究罗马
多年，
这方面知识很渊博。
的;家;;的;;
场工作;代;;He’s spent years studying Roman archaeology, so he really knows his onions.
他研究罗马多年，这方面知识很渊博。
She teaches archaeology at the university.
里教。
Research on the origin and occurrence of gems and jades is one of the hottest topic in geology, gemmology and archaeology.
摘要宝玉石产地来源的研究是近几年地质、宝石和界的热门话题之一。
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