Buying budget-priced furniture needn't mean compromising on quality or style.买价钱经济的家具并不意味着就要牺牲质量和样式。The house is crammed with priceless furniture and works of art.房子里摆满了昂贵的家具和艺术品。Their room was bare of furniture and...
两个磁体的N极和S极互相吸引.The N pole and S pole of two magnets will attract each other.为了做成电磁体你需要对金属线送电.To make an electromagnet you need to send a current through the wire.棒形或马蹄形磁体称为永磁体.A bar on horseshoe magnet is called a perman...