卫生部门正对所有接触者进行追踪调查。
All contacts are being traced and will be followed up by the health authorities.
我们只是追踪调查随着时间的推移有多少家庭符合这样的情况。
We're simply tracking how many families fit that situation over time.
研究者追踪调查了1591 位女性的生命史和婚史，研究了她们的婚姻模式。
The researchers studied marriage patterns to trace the survival and marriage histories of 1,591 women.
Jakob Nielsen的视觉追踪调查图标向我们展示了，我们的眼睛会专注在文字上，而不是广告上。
It shows that our eyes are trained to focus on the text, not the ads.
Jakob Nielsen的视觉追踪调查图标向我们展示了，我们的眼睛会专注在文字上，而不是广告上。
It shows that our eyes are trained to focus on the text, not the ads.
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