中翻译英 王老师负责这个班已经三年了.（in charge of）
问题描述：
中翻译英 王老师负责这个班已经三年了.（in charge of）
答
Professor Wang has been in charge of this class for 3 years.
中翻译英 王老师负责这个班已经三年了.（in charge of）
Professor Wang has been in charge of this class for 3 years.