When walking on the snow, drag your legs to leave two trails on the ground, like a vehicle.
下雪后，走路时双脚不要离开地面，像汽车一样让自己身后留下两道痕迹。
To study the effect of aerodynamic drag in the solar array spreading on the ground, a calculation method of time-varying aerodynamic drag was put forward based on dynamic meshes in this paper.
为研究太阳帆板地面展开试验中气动阻力的影响，基于动网格技术提出了一种时变空气阻力计算方法。
The farmer started to drag the cow by force, but the cow planted her feet firmly in the ground and would not be moved.
于是，农夫使劲而拽它，可是，母牛双脚牢牢地钉在地上，就是不愿意被牵走。
His right wing barely moves, however, and when he walks, the wing feathers drag on the ground.
然而，它的右翅膀几乎不会动，而且它走路时，翅膀上的羽毛拖在地上。
The left foot's heel must be slightly off the ground at this stage. As you drag back, do not push down on the left foot at all or it will not glide.
做这一步的时候，左脚跟要稍微离地，左脚不要往下踩，否则就滑不起来了。
To avoid using heavy objects or tools to tap the ground, nor can it be directly on the epoxy ground to drag the weight.
e避免使用重物或是工具敲击地面，也不可直接在环氧地面上拖移重物。
To avoid using heavy objects or tools to tap the ground, nor can it be directly on the epoxy ground to drag the weight.
e避免使用重物或是工具敲击地面，也不可直接在环氧地面上拖移重物。
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