单词 celerity 迅捷（名词，正式）
英文释义 (noun, FORMAL) A condition of great speed; swiftness；rapidity; speed
例句 EXAMPLE: Our new employee impressed us with the celerity with which he executed his daily tasks.
It improves the celerity and accuracy of speed tracking.
短语 cold comfort 无益的安慰
英文释义 Very limited, unsatisfying consolation or empathy / If you say that a slightly encouraging fact or event is cold comfort to someone, you mean that it gives them little or no comfort because their situation is so difficult or unpleasant.
例句 EXAMPLE: When my closest friend and business partner died unexpectedly, I became sole owner of our prosperous firm, but it was cold comfort because I missed him so much.
These figures may look good on paper but are cold comfort to the islanders themselves.