骑自行车的英语是

get on the bike

go on the bike

或

ride the bike .

例句：

The first time I got on the bike was when I was five.

第一次登上自行车是我五岁的时候.

in the bike 的意思是 “在自行车里”,这句子只能来表示自行车的零件,比如

the gear in the bike is broken.I must get it fixed.

自行车的齿轮破了,我必须把它修好.

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