The main cause的意思|示意

For that reason, since heart failure is the main cause of death in such mice, their lifespans were not extended.

这样的话，由于心脏衰竭是此种小白鼠死亡的主要原因，那么他们的生命长度就无法延长。

It is well known that the main cause of road accidents is drunk driving and driving with over-speed.

众所周知，交通事故的主要原因是酒后驾车和超速行驶。

Flying debris is the main cause of injuries and deaths in tornadoes.

飞扬的瓦砾残片是龙卷风中致伤或致死的主要原因。

Analysts say the main cause of Mexico's nosedive is that the nation's economy is tied strongly to that of the United States, which is mired in the deepest economic downturn since the 1930s.

分析师说，墨西哥经济急剧下滑的主要原因是墨西哥经济与美国紧密相连，美国目前正陷入19世纪30年代以来最严重的经济衰退。

The main cause: the growth in the number of researchers.

造成这种局面的主要原因：研究人员数量的增加。

A: Iodine deficiency is the main cause of brain damage in childhood.

答：碘缺乏症是儿童期脑损伤的主要原因。