tā / men / zài / lì / shǐ / kè / shàng / xué / xí / le / Dūn / kè / ěr / kè / chè / tuì / de / gù / shì

他们在历史课上学习了敦刻尔克撤 evacuation的故事。

They learned about the Dunkirk evacuation in history class.