题目内容
他热忠于当一名志愿者的原因是他觉得给别人带来快乐的人才是世界上最幸福的人。（keen）
The reason why he is keen on becoming a volunteer is that he thinks the person who brings happiness to others is the happiest one in the world.
练习册系列答案
相关题目
题目内容
他热忠于当一名志愿者的原因是他觉得给别人带来快乐的人才是世界上最幸福的人。（keen）
The reason why he is keen on becoming a volunteer is that he thinks the person who brings happiness to others is the happiest one in the world.