heroic ·adjective (TRYING HARD)
Definition: If someone makes a heroic effort to do something, they work very hard to try to do it. Level: C1
尽管英格兰队做出了英勇的努力，他们还是输了比赛。
In spite of England's ___heroic efforts, they lost the match.
那些关心这个主题的人正在做出英勇的尝试，说服他人回收的重要性。
Those who worry about the subject are making a ___heroic attempt to convince others of the importance of recycling.
消防员做出了英勇的努力，从燃烧的建筑物中救出所有人。
The firefighters made a ___heroic effort to rescue everyone from the burning building.