We owe a debt of gratitude to the many individuals who dedicated their lives to making the world a better place . However , we must not rest on their accomplishments , but must instead work assiduously to record even greater achievements .

• 我们应该感谢许多为把世界变得更美好而奉献一生的人。然而，我们不能依靠他们的成绩，而必须努力工作，取得更辉煌的成就。