he has 300 books
他有300本书
以上为机器翻译结果，长、整句建议使用 人工翻译 。
He has published 14 books and more than 300 scientific papers.
凯利·布朗奈尔出版了14本书，撰写了超过300份科研论文。
youdao
Since he began self-publishing his books through KDP in July 2011, he has sold over 300, 000 copies of his books to Kindle readers worldwide.
ENGADGET: Hold the presses! Amazon UK selling more e-books than printed ones
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