magnetics的用法和樣例：
例句
- North magnetic poles repel (each other).
磁北極與磁北極互相排斥。 - The block becomes magnetic when the current is switched on.
通電時(shí)線(xiàn)圈即具磁性。 - The loop becomes magnetic when the current is switched on.
通電時(shí)線(xiàn)圈就會(huì )有磁性。 - She has a magnetic personality.
她具有極具吸引力的性格。
