lì / shǐ / kè / shàng / lǎo / shī / jiě / shì / le / sān / qī / kāi / dìng / lùn / de / jù / tǐ / hán / yì

历史课上，老师解释了“三七开定论”的具体含义。

In history class, the teacher explained the precise meaning of the “three-sevenths verdict.”