"Take dance lessons" 意思是上舞蹈课。
来源： “Take” 是动词，意思是“去参加”或“去学习”， “lessons” 是名词，意思是“课程”。
例句：
I'm going to take dance lessons next week. (我下周要上舞蹈课)
She decided to take dance lessons to improve her fitness. (她决定上舞蹈课来提高身体素质)
He took dance lessons for several years before becoming a professional dancer. (他在成为专业舞蹈演员之前上了几年的舞蹈课)