起初，受试者会被噪音扰乱，但大约四分钟后，他们在任务中的表现与未受噪音影响的对照组受试者一样好。
The noise was quite disruptive at first, but after about four minutes the subjects were doing just as well on their tasks as control subjects who were not exposed to noise.
在主体演讲中，你有大约四分钟的时间进行演讲，值得一提的是必须脱稿。
In Prepared contest, you have about four minutes to take your speech.
周六，巴黎的调查人员说，法航航班在坠机前大约四分钟，自动发送了24个错误信息。
Investigators in Paris said Saturday that the Air France flight sent 24 automated error messages about four minutes before it crashed.
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