A low level of attachment between parents and children.
家长与儿童之间依恋程度较低。
Some automakers design the bumper bar and its attachment brackets to crush in a low-speed crash to absorb energy.
有些汽车制造商设计了缓冲杠并安装在支架上以应对碰撞挤压，在低速碰撞时吸收能量。
Some automakers design the bumper bar and its attachment brackets to crush in a low-speed crash to absorb energy.
有些汽车制造商设计了缓冲杠并安装在支架上以应对碰撞挤压，在低速碰撞时吸收能量。
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