In 1930 he lectured at the University of Michigan and in 1934 he gave a series of lectures in Brazil and Argentina.
1930年,他在密执安大学讲学。1934年,他在巴西和阿根廷作系列的讲座。
He lectured the children on good manners.
他向孩子们作关于礼貌的演讲。
He lectured into a microphone.
他通过麦克风讲课。
He lectured on public hygiene.
他作了场关于公共卫生的讲演。
He lectured on chemistry to a class.
他给一个班上化学课。
He lectured about his method of writing.
他讲授自己的写作方法。
He lectured on philosophy at university.
他在大学讲授哲学。
He lectured the children on good manners.
他向孩子们作关于礼貌行为举止的演讲。
He lectured in the United States last year.
他去年在美国讲学。
He lectured in the United States last year.
他去年在美国讲学。
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