例句:Private firms are willing to make large scale investments to help cure Russia's economic troubles.
私有企业愿意投巨资帮助俄罗斯渡过经济难关。
2.electric field 电场
例句:Even in fair weather, a very small electric field is present in Earth's atmosphere.
即使很好的天气情况下，地球大气层的电场依然存在。
3.precious metals 贵重金属
例句:Platinum and gold are precious metals.
铂和黄金是贵重金属。
4.get rid of 摆脱；除去
例句:I began to have a sinking feeling that I was not going to get rid of her.
我开始有一种永远也摆脱不了她的沮丧情绪。
