音标：['tɒpik]
n. 主题, 论题, 话题
在线英汉词典
topic的短语、例句：
topic n subject of a discussion, talk, programme, written work, etc 论题; 话题; 题目
a topic of conversation 交谈的话题
Is drug abuse a suitable topic for a school debate? 把滥用麻醉药品问题当作学校辩论的题目是否合适?

标签：topic,用法,音标,短语