no longer produced or used; out of date
废弃的;过时的
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the disposal of old and obsolete machinery 对陈旧、废弃机器的处理
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the phrase was obsolete after 1625 .1625年以后这个短语就废弃不用了。
【生】 (生物特征的一部分)废退的,退化的。
〈主美〉 淘汰(产品);废弃(想法)
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we're trying to stimulate the business by obsoleting last year's designs .我们正设法通过淘汰去年的设计来刺激生意。
"late 16th cent.: from Latin