当我们在3月份把钟向前拨以后，我们就进入了夏令时。
When we put the clocks forward in March we go into daylight saving time.
研究人员发现，通过增强光亮调节褪黑激素可以将生物钟向前或向后调整。
Researchers have found that light intensity can adjust the clock forward or backward by regulating the hormone melatonin.
30秒钟后她再次露面，招呼他们向前走。
Thirty seconds later she reappeared and beckoned them forward.
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