刚开始的接触要温柔但是也要稍用力，并且要积极正面。

Make the initial contact with the infant gentle but firm and very positive.

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妈妈说：“你要多搓洗一会儿，还要用力一点。”

" Mom said: "you have to scrub for a while, but also a little harder.

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这个练习的目的是在加载作用力到梁时要达到平衡状态。

The goal of this exercise is to reach an equilibrium position when loading a beam.

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要整个身体的接触，并且用力抱紧。

Give full body contact and a firm squeeze.

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不要用力扭转，要放松。让重力自然起作用。

Don't push into the twist: relax. Let gravity do the work.

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说完，他走上去用力要打开那扇房门。

And he was about to break open the door by force.

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用力要均匀，如用力过猛，会刺伤头皮。

Hard to evenly, such as overexert, would stab scalp.

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用力要均匀，如用力过猛，会刺伤头皮。

Hard to evenly, such as overexert, would stab scalp.

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