单语范例（未经PONS编辑处理）
His language has simplicity and an elegance that make him proper to be accurately studied as a model.
en.wikipedia.org He later studied nuclear physics and worked in a particle accelerator laboratory.
en.wikipedia.org Populations of both fish were studied in the wild, where the fish typically dine on two major types of prey.
news.utexas.edu Nevertheless, such deep understanding is available only for heavily studied systems such as shallow lakes.
en.wikipedia.org In the 1960s he studied the nepticulidae, breeding many species from their leaf mines and the caterpillars within.
en.wikipedia.org