众所周知,肺癌至少部分地是由于吸烟过多而引起的.请帮忙翻译这句,

问题描述:

众所周知,肺癌至少部分地是由于吸烟过多而引起的.请帮忙翻译这句,

it is commonly known that lung cancer is(at least partially is),caused by over amount smoking.