...豆丁网 记录由专业人员分析，分析结果包括以下内容： 总睡眠时间(total sleep time, TST）是指总的研究时间(total study period, TSP)内的 睡眠时间。
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他的一项研究成果被称为“总时间假说”，即你学习的总量取决于你花在尝试学习它上的时间。
One result of his research is known as the total time hypothesis, which simply means the amount you learn depends on the time you spend trying to learn it.
社会研究人员总喜欢看到时间的积极因素。
Social researchers are always keen to attribute all positive events to their cause of the day.
研究回避了一个问题：当代儿童每天看电视和打电玩的总时间很容易超过建议的最多两个小时，这该如何应对？
The study begs the question, though: since most kids these days easily exceed the 2 hour recommended maximum screen viewing time, what's to be done?
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