✔ 最佳答案
There are different form of 講座 in English, example:
Lecture: 授課;演講 (more on training) (eg. Professor will give us a lecture on education.)
Seminar: 研究班,研討班 (eg. HS Bank organize a Investment Seminar.)
Speech: 演說,演講,致詞 (usually given by important people)
Talk show: 訪談節目;脫口秀 (more on entertainment)
Pls be specific.