shortage
n[C, U]
lack of sth needed; deficiency 缺少; 不足; 短缺
food, fuel, housing shortages 食物、 燃料、 住房短缺
a shortage of rice, funds, equipment 大米、 资金、 设备不足
owing to
(a) shortage of staff 由於人员缺乏
a shortage of 50 tons 缺少50吨
There was no shortage of helpers. 不缺帮手.