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BNC: 23187 COCA: 21095

obsolescence

Word family
ob·so·les·cence /ˌɒbsəˈlesəns $ ˌɑːb-/ noun [uncountableU]  
1. OLD-FASHIONEDwhen something becomes old-fashioned and no longer useful, because something newer and better has been invented 过时;淘汰,废弃
2 planned/built-in obsolescence BBTIwhen a product is designed so that it will soon become unfashionable or impossible to use and will need replacing 〔产品的〕有计划报废/内在陈旧性
 the planned obsolescence of some software
某些软件的有计划报废
Examples from the Corpus
Examples from the Corpus
From Longman Business Dictionary
obsolescenceob·so·les·cence /ˌɒbsəˈlesənsˌɑːb-/ noun [uncountableU]
when a product, system etc is becoming no longer useful because something better is available, possible etc
Now markets are subject to the faster obsolescence of products due to greater competition.
obsolescent adjectiveadj
a region tied to an obsolescent industrial base
planned obsolescence
ob·so·les·cence noun
Chinese
Syllable
Corpus

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