deficiencyKK [dɪˈfɪʃənsi] ｜ /dɪˈfɪʃənsi/
GEPT 中高級
C2noun
the state of needing something that is absent or unavailable
After conducting a blood test, the doctor discovered that Tina had a vitamin deficiency.
缺乏；不足
C2noun
lack of an adequate quantity or number
The deficiency of vitamin C in his diet left him susceptible to frequent colds and infections.
（數量）短缺；不足