2. I have to consider in earnest about my future. 我必须认真地思考关于自己未来的问题。
3. I might not best teacher, but I am best earnest and best enthusiastic teacher. 我也许不是最好的老师。但是我是最认真也最热心的老师。
英英解释
n.
1. something of value given by one person to another to bind a contract
2. characterized by a firm and humorless belief in the validity of your opinions
3. earnest
4. not distracted by anything unrelated to the goal