subtopics
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・UK
A1 初級
n.名詞主題構成較大主題或討論的一部分的主題；主題次要或附屬主題。
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如何快速增加詞彙量！ (Build Your Vocabulary FASTER!)
- An example, think of a very general topic, like shopping, and then think of subtopics, something within shopping that's a little bit more specific.
舉個例子，想一個非常籠統的話題，比如購物，然後想一些子話題，比如購物中更具體一點的話題。
- You can talk about e-commerce, or a store, or a few other subtopics.
您可以談論電子商務、商店或其他一些子話題。