相反，如果我对捷运系统的乘客每年做一次调查的话，那么我将会错失乘客也许因为季节性的活动而引起态度方面的重要转变。
Conversely, if I survey the commuters on my rapid transit system once a year, I will miss important changes in their attitudes that may be driven by seasonal events.
国家管理局的一次调查发现儿童和父母在其同龄儿童时期相比，要少花60%的时间在户外活动。
A survey released by the National Trust this year found that they are spending 60% less time in the wild than their parents at the same age.
该组研究对象中的226人依然在世，其中161人在研究中仍处于活动状态，即每两年回答一份调查问卷，并在每15年接受一次个人访问。
Of this group, 226 are alive and 161 are still active in the study, which requires the men to answer questionnaires every two years and to be interviewed personally every 15 years.
在一次名为嘉灵音乐调查的活动中，罗比·威廉姆斯击败了埃尔顿·约翰，麦当娜，大卫·鲍伊及猫王等众明星，荣膺历史最佳现场独唱艺人的称号。
Robbie Williams has beaten the likes of Elton John, Madonna, David Bowie and Elvis Presley to the title of Best Live Solo Artist of All Time.
现在女性们该怎么做此民意调查认为存在举行一次广泛的充满活力的并且新颖的女性平等活动的巨大可能。
What will women do now? The poll suggests that there is tremendous potential for an expanded, revitalized, and updated women's equality movement.
在俄勒冈州的竞选活动中，奥巴马告诉记者他希望国会进行一次全面而详细的调查。
Campaigning in Oregon, Obama told reporters he expects a full and thorough congressional investigation.
最近的一次调查显示，22%的受调查者表示在选择度假时，参与体育活动的机会也是重要的因素。
A recent survey found 22% of those surveyed reported that opportunities to participate in sports were important when selecting a vacation.
这是第一次针对猫的捕食活动与鸟类幼鸟死亡数量关系的科学调查。
It is the first scientific study to calculate what fraction of bird deaths during the vulnerable fledgling stage can be attributed to cats.
这是第一次针对猫的捕食活动与鸟类幼鸟死亡数量关系的科学调查。
It is the first scientific study to calculate what fraction of bird deaths during the vulnerable fledgling stage can be attributed to cats.
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