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历史:
高考 CET-4 CET-6 考研 TOEFL IELTS BNC: 2051 COCA: 1860

topic

1 ENTRIES FOUND:
topic /ˈtɑːpɪk/ noun
plural topics
topic
/ˈtɑːpɪk/
noun
plural topics
Learner's definition of TOPIC
[count]
: someone or something that people talk or write about : subject话题;题目;主题
often + of
see also subtopic

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