Memorial Day
noun [ C usually singular ] uk/məˈmɔː.ri.əl ˌdeɪ/ us/məˈmɔːr.i.əl ˌdeɪ/
（美国假日）阵亡将士纪念日
a US holiday on the last Monday in May when people remember men and women who have died, especially those who have died fighting for their country in wars