magnet

1. N-COUNT If you say that something is a magnet or is like a magnet, you mean that people are very attracted by it and want to go to it or look at it. 有吸引力的事物

Prospect Park, with its vast lake, is a magnet for all health freaks. 拥有大片湖区的展望公园是所有健身迷的向往之地。

2. N-COUNT A magnet is a piece of iron or other material which attracts iron toward it. 磁体

It's possible to hang a nail from a magnet and then use that nail to pick up another nail. 把一颗钉子挂在一个磁体上再用这颗钉子去吸起另一颗钉子是可能的。