According to Twitter's search documentation, the current date limit on the search index is "around 1.5 weeks but is dynamic and subject to shrink as the number of tweets per day continues to grow."

Twitter的搜索文档称当前搜索目录的期限大约为1.5周，但是随着tweets的不断增加，这个期限可能会缩短。

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The same would go for other semiconductors, such as DRAMs. It would also delay by 30 years, until 2040, the date when silicon semiconductors reach their theoretical limit.

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Transport Secretary Philip Hammond said the current limit, introduced in 1965, was out of date due to "huge advances in safety and motoring technology".

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Timberlake went on to date Biel for the next four years (four seems to be his limit, ladies) until they recently called it quits.

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