常见例句双语例句We've got a rule in place called the Backfit rule that says you can't just do this arbitrarily, you have to show cost benefit, value for that change.我们要遵守一个规定，那称为Backfit规定,就是说你不能随意地这样做，你必须要展示出花费的好处，改变的价值。 返回 backfit