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（单词翻译）
Topics: The Extension Courses System; Famous Americans: Lizzie Borden; Boston accent/dialect and the Boston Brahmin; to speak out of turn
Words:
to be enrolled
hobby
offbeat
palm reading
certificate
step-
hatchet
prime suspect
sensational
to speculate
detective
motive
to convict
dialect
Boston Brahmin
to speak/talk out of turn
identical twins
fraternal twins
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