儿童思维：children's thinking
二语词汇：L2 vocabulary
额外收入：additional profit
俄语培训：Russian training
二次进攻：second attack
恶意透支：malicious overdraft
儿童视角：children's perspective
厄运之城：disastrous city
二合思维：The dualistic thought
二级学科：second disciplines
二步保险：two steps of insurance
俄国经济：Siberia
二宫尊德：Ninomiya Sontoku
二态系统：a two-state system
二元共融：binary mergence
二字成分：two-character component
二元特色：dual characteristics
二羧酸钠：Sodium dicarboxylic acid
二女一男：two women and a man
二胡艺术：art of Erhu
儿童梦幻：Children's dream
儿童本真：children's nature
峨眉武术：Emei-wushu
俄语写作：Russian writing
儿化教学：teaching Er Hua
二者关系：relationship
俄勒冈州：Oregon
遏止电压：stopping voltage
二次候诊：second waiting-to-see-the-doctor
俄语发展：The development of Russian
贰臣诗人：Erchen poet
儿童读物：Children's books
二语写作：EFL writing
二次跨越：second leap-over
二语语感：second laguage sense
二元思维：dualistic thinking
儿童世界：children's world
二次尾气：the second exhaust
二元统一：binary unification
二元向度：dimension
二维路径：double-way innovation
俄苏文学：Russian-Soviet literature
鄂州铜镜：Ezhou mirrors
恶意串通：malicious collaboration
二次大战：the Second World War
二元归一：duality
二重让与：double assignment
儿童美学：children esthetics
二语单词：L2 word
二语听力：L2 listening