开始做操作前先做以下准备动作，使血液畅通，肌肉松驰，做操时不致扭伤。

Before gymnastics, you should firstly Warming-up the followings actions, that can cause blood unimpeded, loose muscle, and not sprain while gymnastics.

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现在看镜子检查一下你的高尔夫击球准备动作，看看靠近肩膀的脊柱是否弯曲。

Now with your golf setup take a look in the mirror and look to see if your spine has a curvature near the shoulders.

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他认为这缓慢的动作可能意味着他准备像猫一样扑上去。

He thought that the slow movements might mean that he was preparing to pounce, as cats do.

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If you could look inside a pre-synaptic axon terminal, you would find one of the characteristics is that it's loaded with these vesicles and they're just sitting there waiting to receive an action potential so that they can immediately dump their contents.

如果你能够一窥突触前的轴突末梢内部,你将会发现一个共同特征,神经递质都装载在小泡中,时刻准备着等待动作电位激活,以便迅速释放其内含物

耶鲁公开课 - 生物医学工程探索课程节选