主要原因用英语怎么说？

主要原因

例句

• The tumultuous Cultural Revolution was chiefly responsible for the searing desire for change in China. 混乱的文化大革命是引起对中国发生变化的极度渴望的主要原因。
• The accident happened chiefly because you were careless. 发生事故的主要原因是你不小心。
• Desire causes suffering because it can never be completely gratified. 慾望会导致痛苦，其主要原因乃是慾望永远无法完全满足。
• The increase of carbon equivalent is primary reason for graphite floatation. 碳当量高是引起石墨漂浮的主要原因.
• Defects or their effects are the main reason of invalidating circuit ( IC ) chips. 缺陷及其所带来的影响是 IC 芯片失效的主要原因.
• It is one of the common reasons women have to undergo hysterectomies and laparoscopic surgery. 这也是女性需要接受子宫切除手术和腹腔镜检查的主要原因.
• The placement shot fumbles the primary cause which into this competition Chinese army loses the game. 定位球失球成为本场比赛汉军输球的主要原因.
• There were much high esterified pectin the, which caused cloudy and sediment of Prunus mume juice. 青梅中含有大量的高度酯化果胶, 是造成青梅汁浑浊的主要原因.
• Corporate inventories have begun to rise sharply, mainly due to overproduction. 企业库存已开始急剧攀升, 主要原因是生产过量.
• Carbon dioxide is the largest contributor to the greenhouse effect. 二氧化碳太多是道致温室效应的最主要原因.