When you feel that tension building in your neck or you find yourself grinding your teeth, stop and just smile.
当你觉得压力顶住喉咙或者即将咬牙切齿时，停下来，笑一笑。
A method for improving the grinding accuracy of bearing RACES by computer model building and forecasting is presented.
提出一种利用微机建模预报提高轴承套圈内圆磨削加工精度的方法。
Enjoy the genuine power and taste of wholewheat bread through grinding wheat, building stove and baking bread - all by yourself!
让你磨麦、搭炉、烘面包，品尝真正全麦面包的力量与滋味。
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