Walk, run, ride your bike, or roller blade whenever you can.
尽可能走路、跑步、骑自行车或者使用直排轮。
噢！这个是滚轴刀片。
I may put on a larger roller behind the blade to carry my weight better.
我可以放在一个更大辊背后的刀片履行我的体重更好。
A separation blade is also arranged between the roller and the blade.
所述的滚筒和刀片之间还设有一挡片。
A separation blade is also arranged between the roller and the blade.
所述的滚筒和刀片之间还设有一挡片。
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