袜子的袜身中间段的弹性 圈I使袜子更好的固定在脚上，防止袜子滑动；
The elastic ring I in the middle section of the sock body enables the socks to be well fixed on the feet so as to prevent the socks from slipping;
袜子的袜身中间段的弹性 圈I使袜子更好的固定在脚上，防止袜子滑动；
The elastic ring I in the middle section of the sock body enables the socks to be well fixed on the feet so as to prevent the socks from slipping;
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