前拨是自行车变速系统的重要组成部分，负责牙盘档位准确快速的升降。来让自行车车手适应不同的路况。
亚利桑那州从未采用新的时间制，因为夏天把时钟“前拨”一小时就太热了。
Arizona never adopted the new time plan on the grounds that it was too hot out to "spring forward" an hour in the summer.
你可能会使用短语“春季前拨”和“秋季后拨”来帮助自己记忆这两次调整。
To help remember when to do what, you might use the phrases "spring forward" and "fall back."
有十个州根本就没有给学龄前儿童提供任何资金；而有些州只是随意地拨些款而已。
Ten states do not provide any funding at all for preschoolers, and some appear to fund it only haphazardly.
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