magnet
/ˈmægnɪt; `mæɡnɪt/ n
1 piece of iron, often ina horseshoe shape, which can attract iron, either naturallyor because of an electric current passed through it, and which points roughly north and south when freely suspended 磁铁; 磁石. =>illus 见插图.
2 (fig 比喻) person or thing that has a powerful attraction 有强大吸引力的人或物
This disco is a magnet for young people. 这家迪斯科舞厅经常吸引大批年轻的顾客.