swift·ness
noun/ˈswɪftnəs/
/ˈswɪftnəs/
[uncountable]- the fact of happening or being done very quickly or in a very short time
迅速：在非常短的时间内很快发生或完成 - He moved with surprising swiftness for someone who had just woken up.
对于刚睡醒的人来说，他的动作之快令人惊讶。 - These technological changes happened with astonishing swiftness.
这些技术变革以惊人的速度发生。
- He moved with surprising swiftness for someone who had just woken up.