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C210 · 普通句（141 课）
The celebrated theory is still the source of great controver
Course 210
(普)The celebrated theory is still the source of great controversy.
1 句 · 父母与孩子分角色配音
旁白 neutral
The celebrated theory is still the source of great controversy
这一著名的理论仍然是巨大争议的源头。
