当时，多数关税是根据物品数量征税（例如每磅多少美分），而不是根据价值征税。
In those days most tariffs were levied on the volume of imports (so many cents per pound, say) rather than value.
bug数量也许有其价值，但是修复的bug数目并不能为我们带来多少有用信息。
The number of bugs might be valuable, but knowing how many are fixed doesn't really tell us much.
bug数量也许有其价值，但是修复的bug数目并不能为我们带来多少有用信息。
The number of bugs might be valuable, but knowing how many are fixed doesn't really tell us much.
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