短语
中文翻译：不借助书本说话
同义词：
['talk without a book', 'speak withouta book']
例句：
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1. Heoften speaks without a book to explain complexideas.
他经常不借助书本来解释复杂的思想。
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2.She learned to speak without a book bywatching TV programs in her native language.
她通过观看母语的电视节目学会了不借助书本说话。
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3. The teacher encouraged the students to speakwithout a book during their presentations.
老师鼓励学生们在演讲时不借助书本。