单语范例（未经PONS编辑处理）
The gardens were established in 1978 when the society leased 33 acres (13.4 hectares) for a public botanical garden.
en.wikipedia.org The two went on to develop a master plan for a city botanical center in the late 1960s.
en.wikipedia.org In addition to his lecturing duties he led many botanical excursions.
en.wikipedia.org He discovered the study of cryptogams and mushrooms as a volunteer at the botanical garden.
en.wikipedia.org Botanical considerations led us to believe that in the wide shade of the giant there might be some interesting herbs.
en.wikipedia.org