你多长时间骑一次自行车？
Do you need to ride a bike to school?
你需要骑车上学吗？
And if you do eat a sweet, go for an extra walk or bike ride or swim.
如果你吃过了甜食，起来多走走、骑一会自行车或者游一会泳。
B. Do you often ride a bike to school?
你经常骑自行车上学吗？
If you can walk or ride a bike to work, do it!
如果你能走路或者骑脚踏车去上班，这样做吧！
A. Do you often go to school by bike? B. Do you often ride a bike to school?
你经常骑自行车上学吗？
你是步行还是骑自行车？
Do you know how to ride a bike?
你知道怎么骑自行车吗？
Do you try to walk or ride a bike to school?
你试过走着或骑车去学校么？
你在训练骑自行车。
你在训练骑自行车。
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