So far all efforts to find a cure have been unsuccessful but the German discovery has raised hopes in some quarters.

到目前为止，所有寻找治愈方法的努力都以失败而告终，但是德国的这项发现在某些方面带来了希望。

youdao

Before 2007, it was unsuccessful, likely because the forces administering it tended to spend less time in their communities and so knew less about them.

2007年前这种方式是不成功的，很可能是因为执行计划的人低估了需要花费的时间并且去了解的很少。

youdao

That's why unsuccessful people have so many excuses.

这就是 为什么不成功的人有很多借口的原因。

youdao

According to Tim Hubbard, a computational biologist at the Sanger Centre in Cambridge, England, the big question in protein modelling is why ab initio modelling has hitherto been so unsuccessful.

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Slim already offers cable TV services across Latin America through his wireless company America Movil, so unsuccessful efforts to do this in his own country continue to frustrate the telecom, mining and real-estate entrepreneur.

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She's helped to rebuild friendships in Europe, backing the so far unsuccessful European negotiating effort with Iran.

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