左支右绌

zuǒzhī-yòuchù

[not have enough money to cover the expenses; be unable to cope with a situation; be in straitened circumstances] 本指射箭时左臂撑弓、 屈右臂扣弦之法。 后转指应付了左面, 右面又感到不够。 表示财力或能力不足, 穷于应付