Deep Groove ball bearings are the most popular of all the ball bearing types because they are available in a wide variety of seal, shield and snap-ring arrangements.
深沟球轴承是所有类型的球轴承最流行的，因为他们是在一个密封，盾牌和管理各种各样的戒指安排可用。
The deaf boy's body started shaking all over and he curled up in a ball trying to shield and hide his face.
聋人男孩的身体开始颤抖，他蜷缩在一个球试图保护和隐藏他的脸。
The deaf boy's body started shaking all over and he curled up in a ball trying to shield and hide his face.
聋人男孩的身体开始颤抖，他蜷缩在一个球试图保护和隐藏他的脸。
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