重点讲解：
1. in favor of 支持；赞成；
例句：I am in favor of the second viewpoint.
我赞成第二种观点nKi7qUnCnvW2kYz1[。
2. set off 引爆（炸弹）；触发，拉响（警报等）；
例句：He likes to set off firecrackers during Diwali.
他喜欢在排灯节放鞭炮WwmhDQC7cY。
3. clean up 打扫；清扫；把…弄干净；
例句：Nina and Mary were in the kitchen, cleaning up after dinner.
吃过晚饭，尼娜和玛丽在厨房里收拾EBl5TrutP&Q2JSmn9med。
4. kill off 毁灭；破坏；扼杀；使停止；
例句：Frost can kill off a young plant.
严寒会摧毁幼苗Kzg56Tbiy0W)v!JXb_t,。
5. be known for 以…闻名的；
例句：The oboist is well known for his improvisation.
这位双簧管吹奏者以即兴演奏而著名uHhR^q-.D+K+aP.#。