立彬の日本語

講師は公害問題について講演した。

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The lecturer spoke on pollution problems.
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講師， こうし
1. speaker, lecturer 2. lecturer (at a university or college), instructor 3. part-time teacher 4. tutor (at a cram school)
演讲人、讲师；讲师
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公害問題， こうがいもんだい
1. pollution problem or issue
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について， に就いて
1. about, on, regarding, concerning 2. per, for every
关于
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講演， こうえん
1. lecture, address, speech
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は
は
1. indicates sentence topic 2. indicates contrast with another option (stated or unstated) 3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
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為る(する){した}
する， 為る
1. to do, to carry out, to perform 2. to cause to become, to make (into), to turn (into) 3. to serve as, to act as, to work as 4. to wear (clothes, a facial expression, etc.) 5. to judge as being, to view as being, to think of as, to treat as, to use...
做，作，干，执行
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