虽然这种方法在理论上有助于减肥，但这不并是最健康的或最有效的。
Although in theory this method should help you lose weight, it is not the healthiest or most successful.
道林写道：“虽然每种分析方法的优点都存在争议之处，但三种方法都表明这种疫苗在预防艾滋病病毒传染方面具有可能但却适当的有效性。”
"Although the merits of each type of analysis can be debated, all three yielded a possible, albeit modest, effect of the vaccine in preventing HIV infection," Dolin wrote.
虽然这种方法更容易有效地实现，但结果是没有原来所想的那么有用。
While this approach was easier to implement efficiently, it turned out to be less useful than initially thought.
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