如果有个心烦意乱、忧心忡忡的母亲，一个完全无用的角色，那就是我。
I became a distraught, worried mother, a useless role if ever there was one.
他也给纽约警署报警并且要去其帮助，完全无用。
He also called the New York police and asked, to no avail, for help.
所以，你必须停止浪费你的时间完全无用的秘密搜索。
So, you have to stop wasting your time searching for absolutely useless secrets.
从表面上看，这是个不可批驳的理由，但是实际上这是完全无用的。
On the surface that seems like a great argument, but it's completely unnecessary.
对于一个完全无用的模式来说，答案会是50%；对一个完美的模式来说，答案会是100%。
For a completely useless model, the answer would be 50%; for a perfect model, the answer would be 100%.
对于一个完全无用的模式来说，答案会是50%；对一个完美的模式来说，答案会是100%。
For a completely useless model, the answer would be 50%; for a perfect model, the answer would be 100%.
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