heroic
adjective uk/hɪˈrəʊ.ɪk/ us/hɪˈroʊ.ɪk/
C1 英勇的，英雄的
very brave or great
a heroic act/deed 英勇的行为／英雄事迹
C1 informal花费极大力气的
If you make a heroic attempt or effort to do something, you try very hard to do it.
Despite Roz's heroic efforts to liven it up, the party was a disaster. 尽管罗兹费了很大力气来活跃气氛，这次聚会还是很糟。