B2 [ U ] an occasion when something is put into use or brought to a place for the first time采用;引进;推行;放入,插入
More examples
The introduction of identity cards has been opposed by the campaign for civil liberties.
Company profits have doubled since the introduction of new technology.
In the 1960s hemlines suddenly shot up with the introduction of the miniskirt.
The introduction of new charges has angered customers.
The minister has called for the introduction of harsher sentences for speeding offences.
B2 [ C or U ] the action of telling someone another person's name the first time that they meet介绍,引见
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