correspondence course
noun [ C ] uk/kɒr.ɪˈspɒn.dəns ˌkɔːs/ us/kɔːr.əˈspɑːn.dəns ˌkɔːrs/
函授课程
a course of study in which you study at home, receiving, and sending off work by post, email, etc.
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。