a shot in the arm
給予鼓舞或幫助,尤指在情感或士氣方面
口語·表示激勵或提振
英文釋義
a boost or stimulus; something that rejuvenates or revitalizes
例句
The new funding was a shot in the arm for the struggling startup.
典故來源
原指注射藥物(如疫苗或興奮劑)到手臂,能迅速帶來效果,后比喻任何能提振士氣或活力的刺激。