Ballerinas dance on the tips of their toes.
芭蕾舞演员跳舞，是用脚尖点地的。
Their shoes have a hard box at the front.
她们的鞋头，有个硬硬的小盒子。
This box holds the whole body weight.
这个小盒子，撑住了全身的重量。
That is how they can stand straight up.
这样她们才能直直地立在地上。
They spin and leap on those tough shoes.
穿着这种结实的鞋，转圈、跳跃都不怕。
It takes years of practice to dance this way.
这么跳舞，没个几年功夫可不行。
