他是我们 中间 惟一懂俄语的人.He is the only one who [ that ] knows Russian.俄语的拼法是音形一致的.Russian spelling is phonetic.她原来是学俄语的, 但最近改学了生物.She used to study Russian, but lately she changed to biology....

“俄语的”的英语可以翻译为：Russian ...