今年夏天请每周访问官版Lost网站。
Visit the LOST site every week this summer to see new content!
此外，14岁的或年长的美国人，三个中就有一个每周访问一次甚至更多。
Moreover, one out of three Americans 14 years or older visit once a week or more often.
每周访问一次母亲，观察她们自身的疾病信号或者她们自出生到24周的婴儿。
Mothers were interviewed weekly about signs of illness in themselves or their infants from birth to 24 weeks.
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