1. triple adj. 三倍的 He got triple wages for all his extra work.
v. 是原来的三倍 翻三倍，The prices of apartments have tripled in the past ten years.
2．The number of road accidents and the deaths arising from those accidents has increased greatly over the past year. (L1) 在过去的一年中，交通事故数量以及由交通事故所引发的死亡人数急剧上升。
【解析】arising from those accidents是现在分词做后置定语，修饰road accidents and the deaths。
arise-arose-arisen不及物动词 arise from / arise out of 由…引起，起源于
