A ballpark estimate or figure is a number that is a guess, but one that you believe is near the corr

中文解释

（数字）大致准确的 We\'ll have to go away and cost this carefully, but as a ballpark figure I\'d say that it\'ll be about two million dollars. 我们得回去仔细算算它的成本，但我估计会在200万美元左右。