Opium is classed under the head of narcotic.鸦片是归入麻醉剂一类的东西....hormones that have a narcotic effect on the immune system.对免疫系统有麻醉作用的激素They use opium as a sedative, rather than as a narcotic.他们把鸦片用作镇静剂而不是毒品。He appears to be...
They use opium as a sedative, rather than as a narcotic.他们把鸦片用作镇静剂而不是毒品。Opium is classed under the head of narcotic.鸦片是归入麻醉剂一类的东西.Opium is a narcotic drug.鸦片是麻醉剂....
You don't have to go running upstairs every time she rings.用不着她一来电话你就往楼上跑。If the phone rings say you'll call back after dinner.如果有电话打来，就说你吃完饭再回电话。In graphite sheets, carbon atoms bond together in rings.石墨层中的碳原子...