cannibalize

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At least one part of the brain, however, now appears to self-cannibalize.
无论如何，至少大脑的一部分现在看来是在自我蚕食。
Publishers have made no secret of their dislike of Kindle book pricing, which they fear will cannibalize higher-priced hardcover sales.
出版商对Kindle图书定价的不满已经不是个秘密了，低价的电子图书不断蚕食着高价精装书的销售额。
Book publishers have worried about the $9.99 flat price ever since Amazon.com introduced it for its Kindle reader in 2007, fearing that it could cannibalize sales of higher-priced hardcover books.
图书出版者担心，9.99美元这一当年亚马孙网站在2007年为了推广旗下的kindle阅读器可开出的平价将会影响价格更高的精装版图书的销售。

"Netflix is starting to cannibalize cable-TV viewership and it could start cannibalizing advertising, too, " Pachter said.
MSN: Netflix's monthly video streaming tops 1 billion hours
Both Moon and board game retailers were were initially worried that digital sales would cannibalize hard-copy sales.
FORBES: Ticket To Ride: How The Internet Fueled A New Board Game Powerhouse
Not that Google would ever want to cannibalize its billion-dollar Android business.
FORBES: Google to Overtake Apple in 2016

to take parts from a machine or vehicle in order to make or repair another machine or vehicle

BRIT also cannibalise
If one of a company's products cannibalizes the company's sales, people buy it instead of any of the company's other products.