经典句子：

Can you ride a bike without the training wheels?
没有辅助轮的话你会骑自行车吗?
Let’s have a try. I’ll hold the bike.
我们试试吧，我会扶着车子的。
Promise you won't let go of it.你一定不要松手啊。
I promise.我保证。Don't be nervous.别紧张。
Put on your helmet.戴上头盔。
Let’s remove the training wheels.我们把辅助轮卸下来。
Get on the bike.上车吧。Sit upright.坐正了。
Grab the handlebars tightly. 抓好车把。
Step forward.朝前蹬。Keep your balance.保持平衡。
Hold on.扶好了。I can't make it.我不行的。
Trust in yourself.相信自己。
Turn left and keep pedaling.向左转，继续蹬。
I can ride on my own.我会自己骑了。
You let go.你放手吧。
You’ve been cycling on your own for ages. Have I?
你一个人骑了好长时间了。是吗？
We are going down a slope.我们正下坡呢。
Hold the brakes slightly.轻轻地捏住闸。
Watch out for the tree.小心那棵树。
Bad luck! I've bumped into a tree.真倒霉！我撞到树上了。