Suppose someone to place an iron ball on the table, then this ball will run straightway towards the magnet.

假设有人在桌子上摆一个铁球，那么这个铁球立刻就会朝着磁铁的方向滚动过去。

youdao

Then he asked, “Who can move this iron ball?

这时他开始发问：“谁可以把这个铁球移动？”

youdao

Then came more men. The iron ball still didn’t move.

台下有一个人说：“我来试一下”那个人上台用大铁锤朝这打铁球猛敲一下，打铁球纹丝不动，然后陆续上来几个人，铁球仍然没有动。

youdao

The ball was made of iron and wood and it was lit with one hundred lights.

VOA: special.2009.12.28

From 253 yards, he used a four iron to chase the ball down the length of the green and into the hole.

WSJ: Masters 2012: Bubba Watson Miracle Shot Lets Him Trump All Comers

"If you get the ball on the fairway you're going to have a lot of nine iron shots or under and you can attack this golf course, " he added.

CNN: Woods off the pace at Greenbrier as Singh takes lead