Calgary Stampede
Studio Classroom July 5, 2014
l frontier (1) 邊境 e.g. Life on the
frontier was tough and dangerous. (2) 邊疆、邊界 (3)知識的新領域 e.g. The research team's work is on the frontier of medicine.
l authentic 道地的、真正的 e.g. The report was proven to be
an authentic account of the event, not exaggerated.
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