sub·top·ic 
(sŭbtŏp′ĭk)
(sŭbtŏp′ĭk)n.
One of the divisions into which a main topic may be divided.
| 单词 | subtopic |
| 释义 | sub·top·ic (sŭbtŏp′ĭk)n. One of the divisions into which a main topic may be divided. |
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