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C177 · 普通句（141 课）
A typical part of the course involves the study of society.
Course 177
(普)A typical part of the course involves the study of society.
1 句 · 父母与孩子分角色配音
旁白 neutral
A typical part of the course involves the study of society
课程的一个典型部分涉及社会研究
