n.食指，示指...

first name的反义词有：family, name, surname, last, name。n.first name的反义词（名）：family, name, surname。first name的反义词（其他释义）：last, name。...

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...