Although some in the industry are optimistic that Johnson & Johnson can quickly regain its perch, some Wall Street analysts are not convinced.

一些业内人士对强生公司能够快速恢复高位表示乐观，但也有一些华尔街分析家对此并不认同。

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Some observers are not convinced.

一些观察家并不以为然。

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You are not convinced yet?

你不相信？

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Skeptics argue,however, that rising temperatures and warmer oceans are part of a natural cycle and are not convinced the changes are a result of man's pollution.

VOA: standard.2009.05.03

"This is what the Palestinians are convinced Obama has not shown in the past 18 months.

VOA: standard.2010.05.03

Not all of the families of the British victims are convinced that Abdel Basset al-Megrahi was responsible for the worst-ever terrorist incident on British soil.

VOA: standard.2009.08.21

But many people are not convinced that the fast track will be fast enough.

ECONOMIST: AIDS

The police are not convinced but they know stopping illegal street racing is virtually impossible.

BBC: On the trail of street racers

Some analysts, however, are not convinced by measures such as the fixing of the exchange rate.

NPR: Iceland Shivers From Financial Crisis