Jeff: the throwing iron hammers is that the athletes hold iron hammers of 56 pounds with rings. Behind them is a pole stand similar to the stand for polejump.
杰夫：“抛铁锤”是：运动员手持56磅重的带环铁锤，背后是一个像撑竿跳高用的撑竿支架。
2
The crew pulls out a big net on a pole. Jump in, Dog!
船员们伸出一根套着大网的杆子。跳进来，小狗！
3
At last, the author through the contrast research of our country's athlete to find out the distance with the world elite, and to heighten the level of pole high jump of our country.