This is the 6389th most frequent Chinese word.
报国
"报国" means "to serve or repay one's country."
The word '报国' here refers to dedicating oneself to serving one's country through significant contributions, such as advancements in science.
他立志通过科学研究报国。
He is determined to serve his country through scientific research.
The term '报国' in this sentence emphasizes devotion to one's country through military service and defense.
这位将军用一生的战斗报国。
This general served his country throughout a lifetime of battles.
Here, '报国' is used to imply performing acts that contribute to the betterment of one's country in practical ways.