More study is necessary, however, before the costs and benefits of a well-designed program of obesity reduction can be responsibly assesssed.
然而，研究还需要继续进行，直到我们能够可靠地估算一项设计完善的减少肥胖计划的成本和收益。
These nuances of the rm command show how even a simple, well-designed program with options that make sense can have subtleties that can be dangerous to the user.
rm命令的这些细微差别显示了，即使是一个简单的、设计精美的程序，也带有可能带给用户危险的微妙的选项。
These nuances of the rm command show how even a simple, well-designed program with options that make sense can have subtleties that can be dangerous to the user.
rm命令的这些细微差别显示了，即使是一个简单的、设计精美的程序，也带有可能带给用户危险的微妙的选项。
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