n. something of value given by one person to another to bind a contract
s. characterized by a firm and humorless belief in the validity of your opinions
n. 定金, 诚挚, 认真
a. 认真的, 热心的, 重要的
1. She made an earnest effort to improve her English skills.
她认真努力提高自己的英语水平。
2. His earnest expression showed how much he cared about the project.
他认真的表情显示了他对这个项目有多么关心。
3. They had an earnest discussion about their future plans.
他们进行了一个关于未来计划的认真讨论。