phrase If something is in short supply, there is little of it available: 供应不足，短缺 Strawberries are in short supply this summer.今年夏天草莓供应不足。 Vaccines were in short supply at that time. Unfortunately, respectful discussion seems to be in short supply around here. Class sizes are large because trained teachers are in such short supply. I want to work, but jobs in the arts are in short supply. See also
supplynoun
in short supply | American Dictionary
in short supply
idiom only available in small amounts: Money was in short supply.