lì shǐ kè shàng / lǎo shī / jiè shào / le / Guó jì Lián méng / zài / wéi hù / guó jì hé píng / fāng miàn / de / jú xiàn xìng

历史课上，老师介绍了国际联盟在维护国际和平方面的局限性。

In history class, the teacher explained the limitations of the League of Nations in maintaining international peace.