It’s not firsthand information.那不是第一手资料。I learned the news about her mother's illness firsthand from Lena.我直接从丽娜那里了解到她母亲生病的消息.School trips give children firsthand experience not available in the classroom.学校组织的出游能让孩...
School trips give children firsthand experience not available in the classroom.学校组织的出游能让孩子们获得在课堂上得不到的亲身体验。I heard her news firsthand.我直接从她本人那里听到她的消息.I learned the news about her mother's illness firsthand from Lena....
最具有经济价值的铁矿包括磁铁矿和赤铁矿.Iron ores of greatest economic interest contain magnetite and hematite.这是因为氧化磁铁矿蜕变.This is because the oxidation breaks down magnetite.某些贱金属以及金常常与磁铁矿和磁黄铁矿这类磁性矿物一起被发现.Base metals and gold are often fou...