Something that you can do at apinchcan be done if it is reallynecessary, but it will bedifficult, notperfect, or not what you would really like:
必要时；在紧要关头I need £2,000 to set up thebusiness, but Isuppose£1,500 would do at apinch.我需要2000英镑来创办这个公司，不过实在凑不够，1500英镑也可以。