What is the hardest thing about learning to ride a bike这是英语谜语,
问题描述：
What is the hardest thing about learning to ride a bike
这是英语谜语,
答
get a bike first
答
The hardest thing about learning to ride a bike is keeping one's balnace as well as steering clear of any obstacles on the road.
答
So interesting.
答
The hardest thing about learning to ride a bicycle is the road
答
the balance