Practice that. It's important because you have no idea the number of excuses people come up with to hang onto their data and not give it to you, even though you've paid for it as a taxpayer.
这样练习是非常重要的 因为你不知道那些拥有数据的人 有多少理由拒绝将数据给你，甚至你作为一个纳税人是为此付了钱的