儿歌识字：Literacy teaching through nursery song
二语隐喻：L2 metaphor
二语口语：L2 speaking
二维会计：2-D Accounting
儿化后缀：retroflex suffix
儿童生命：children's life
俄国侨民：Russian immigrants
儿童题材：children theme
二字结构：Two-character structure
二元格局：dualistic structure
二次腾飞：Rise Again Rapidly
儿童叙事：children's narrative
儿子与情：Sons and Lovers
儿童电影：kids movies
俄国文论：Russian literal theory
二元外交：Dual-policy
尔纳学派：The Bernal School
贰臣心态：turncoat mentality
二药方案：two-agent combination chemotherapy
二次起升：Secondary hoisting
耳蜗细胞：cochlear
耳真菌病：Otomycosis
二烷基锌：dialkylzinc
二甲基锌：dimethylzine
二卤化物：dihalide
二次焊接：Effect of second-time welding
二正辛胺：di-n-octylamine
鹅业经济：Goose Industry Economy
二分频器：divide-by-2
耳语廊模：whispering-gallery-mode
腭种植体：Palatal implant
鄂香1号：E-xiang No.1
二元互补：duality-compensation
耳部疾病：ear disease
二段烧结：second stage sintering
鄂棉16：Emian 16
二阶F比：Two-level F-ratio
二茂铁醇：sodium borohydride
恶意干扰：Intrusion
二层扩展：Layer 2 expansion
二级湖堤：2nd-Class Bank
耳鸣匹配：Matching test
耳穴名称：Auricular nomenclature
耳穴定位：Auricular location
二维编织：2D woven
蒽醌甙元：anthraquinone
二次点火：twice ignition & serial combustion
二相调制：two-phase modulation
耳郭疗法：Auricular therapy
耳整形术：plastic surgery on ears