虽然电动自行车最早出现在上世纪90年代，但更便宜的选择和更持久的电池正在给这一概念注入新的活力。
Although e-bikes first appeared in the 90s, cheaper options and longer-lasting batteries are breathing new life into the concept.
从20世纪90年代中期到末期，IBM引入了数据仓库的(Data Warehousing)的蓝图，用于通过持久性的数据存储(中心数据仓库或CDW)帮助保证数据完整性和过程一致性。
In the mid to late 1990's, IBM introduced a Blueprint for data Warehousing that aided data integrity and process consistency through the persistent data store (Central data Warehouse or CDW).
1990年代日本金融危机之所以旷日持久，原因之一就是财务省和日本央行的前资深员工在这些需要整改的银行任职。
One reason why Japan's banking crisis in the 1990s took so long to fix was because former senior staff from the finance ministry and bank of Japan had moved to the Banks that needed fixing.
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