Momentum can surge you forward and it can pull you under.
动力能驱使你向前，它能迫使你下沉。
As you slide the leg back slowly move your head forward as if it is being left behind the movement and then pull it back towards the body as you switch to the other foot.
当你的脚慢慢向后滑动时，稍稍把头向前移动，就好像头部的动作慢一拍一样。当你转到另一只脚时再把头伸回来。
Pull the receiver back and let it snap forward.
把反弹器向后拉，让它朝前弹。
But it is true. Sometimes you have to pull back and regroup before you can make meaningful forward progress.
而事实的确如此，在你做出有意义的行动之前，有时你必须退出并重组。
So we must pull our study forward and deeply, reflecting and pumping it on the level of philosophy, so that we can give our people a principle of understanding this new social formation.
因而，我们必须在哲学的层面上加强对知识经济的追问和反思，以便给予人一个思想上的支点。
I truly enjoy the guitar and look forward to the times throughout the day when I can pull it out and try out some new stuff.
我很喜欢吉他，并且一直期望自己能够不断去尝试新东西。
This paper demonstrates a novel ZCT push-pull forward boosting power supply's main circuit. It analyzes the main circuit's principle and calculates the auxiliary circuit's parameters.
介绍了一种新颖ZCT推挽正激软开关升压电源主电路，对该主电路工作原理进行了详细分析，并对辅助谐振电路参数进行公式推导。
This paper demonstrates a novel ZCT push-pull forward boosting power supply's main circuit. It analyzes the main circuit's principle and calculates the auxiliary circuit's parameters.
介绍了一种新颖ZCT推挽正激软开关升压电源主电路，对该主电路工作原理进行了详细分析，并对辅助谐振电路参数进行公式推导。
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