lecturer
[ˈlɛktʃəɚ]
n.
（大学或学院中的）讲课者，授课者，（英美大学中的）讲师;
演讲者;
例句:
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He was much in demand as a lecturer in the US.
他的讲座在美国很受欢迎。
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In 1978 there were 884 students at a lecturer/student ratio of 1:15.
1978年有884名学生，师生比为1比15。
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Until 1982 he was senior lecturer in botany at Durham University.
1982年以前他一直是达勒姆大学生物系的高级讲师。
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A lecturer in European prehistory at the University of Leeds.
来自Guardian
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Walcott is in constant demand as a reader and lecturer.
来自NEWYORKER
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Frank V. Cespedes is a senior lecturer at Harvard Business School.
来自WSJ