To make an electromagnet you need to send a current through the wire.为了做成电磁体你需要对金属线送电.The principle of electromagnet induction had thus been discovered.电磁感应定律就是这样发现的.Reset pneumatic spring, mechanical spring reset, reset...
注意过去时态动词的结尾.Note the endings of these regular past tense verbs.你列得出动词'beat'的所有时态变化 吗 ?Can you conjugate'to beat'in all its tenses?动词随着人称 、 时态 、 语态和语气的不同可能会有词形的曲折变化.Verbs may be inflected for person, t...
小型企业是经济的生命力所在。Small businesses are the lifeblood of the economy.他看上去病得很厉害—他的生命力似乎枯竭了。He looked very ill—his life force seemed to have drained away.浪漫主义作家认为想像的生命力本身就很重要.The Romantics believed that the life of the imaginat...