常见例句雙語例句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.我們要遵守一個槼定，那稱爲Backfit槼定,就是說你不能隨意地這樣做，你必須要展示出花費的好処，改變的價值。 返回 backfit