courseon Basic wordsalso onCEFR Beginners (A1)? CEFR Elementary (A2)? CEFR Intermediate (B1)? CEFR Mastery level (C2)? Band 2 (BND2)? 课程,过程 courses courses(noun) 课程,路线(course的复数) course course(noun) 课程,过程 Forms noun courses course