Project constraints in resources and time invariably force a focus down to primary data elements and domains.

由于项目受到资源和时间的约束，该分析常常集中于主要的数据元素和域。

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The movement of the bell is forward and back, not up and down, with the goal to project the force forward and to resist by grounding into your feet.

壶铃的运动是前后方向的，而非上下，要实现此目的需要将力向前延伸，并通过双脚抓地来抵抗向前的拉力。

youdao

The movement of the bell is forward and back, not up and down, with the goal to project the force forward and to resist by grounding into your feet.

壶铃的运动是前后方向的，而非上下，要实现此目的需要将力向前延伸，并通过双脚抓地来抵抗向前的拉力。

youdao