Although transmission by large droplets when people cough or sneeze is considered the major route of influenza spread, transmission via contaminated hands may be a contributing factor.

虽然在咳嗽和打喷涕时通过大的飞沫传播被认为是主要的流感传播途径，但是通过受污染的手传播可能是一个促进因素。

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Knowing English is considered as a major factor that can interfere with one’s success in his professional arena.

一个人在其专业领域能否获得成功，很大程度上取决于他懂不懂英语。

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High blood pressure is considered a major risk factor for heart disease and stroke.

高血压被认为是心脏病和中风的主要危险因素之一。

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The drive registered 135, 000 voters and was considered a major factor in the upset victory of Democrat Carol Moseley Braun over incumbent Democratic Senator Alan Dixon in the 1992 Democratic Senate primary.

WSJ: Acorn Who?

This factor, they add, is considered the most significant weakness of both Madrid - one of the few major European capitals yet to host the Games - and Tokyo's bids.

BBC: Obama to woo IOC over Chicago bid