If youwalk/treadatightrope, you have todealwith adifficultsituation,especiallyoneinvolvingmaking adecisionbetween twoopposingplansofaction:
走钢丝；（尤指因进退两难而）处境危险Manymanufacturershave towalkatightropebetweenpricingtheirgoodstoo high and notsellingthem, andpricingthemlowandlosingmoney.许多制造商都面临两难的境地：或把价格定得太高结果卖不出去，或把价格定得很低结果赔钱。