您要查找的是不是：
- Drinking is a principal cause of traffic accidents. 酗酒是交通事故的主要原因。
- The details of the principal cause are not known. 主因未详。
- Drinking is a principal cause of highway deaths. 酗酒是公路死亡事故的最主要的原因。
- Flux entrapped in the joints is the principal cause of low strength or failure. 裂缝中封存有焊药是强度不足或断裂的主要原因。
- Running water is one of the principal causes of soil erosion. 奔流不断的水是侵蚀土壤的主要原因。
- Frequent consumption of sugary snacks is the principal cause of tooth decay, which can cause a great deal of pain and discomfort. “频繁摄取含糖的零食是蛀牙形成的主要诱因，给人们带来了很大的痛苦和不便。”
- There had been another son, but he had died, and the manner of his dying was the principal cause for the enmity between the landlord and the tenant. 他原来还有一个长子，后来被王常盈借日本人的刀把他杀害了，从此王李两家便结下了不共戴天之仇。
- The principal cause of increases in the level of state expenditure and hence of taxation has, for most of history,been war. 在大部分历史时期里，国家开支及相应的纳税额度增长的主要增长原因都是战争。
- By preenting HP infection, the accines remoe the principal cause of cerical cancer and genital warts, as well as pre-cancerous lesions. 通过预防HP感染，疫苗消除了子宫颈癌，生殖器疣及癌前期病变的首要致病因素。
- On the causal relationship, it proposes that it should be use "principal cause" in order to make the antidumping law become more fair. 关于因果关系标准问题，则建议为了使反倾销法更趋公正性，应实现“主要原因”标准的回归。
- Aberrant expression of bcl-2, box and ICH-l may be related to HCC genesis, but HCV infection may not be the principal cause for their expression aberrance. bcl-2、bax及ICH-1基因表达异常可能与肝细胞癌变有关,但HCV可能不是引起bcl-2、bax及ICR-1表达异常的主要原因。
- Social structural tensions and flawed State systems are the principal cause of this massive occurrence of transgress, which in return constraints the operation of social control. 这是因为社会的结构性紧张以及一些存在缺陷的国家制度导致了拐卖妇女这一大规模越轨行为的发生，并制约着社会控制的运作。
- Results Mountain resources are luxuriant,but economy is lagging. The principal cause is unreasonable utilization of montane resources. According to mountain resources conditions,exploitation patterns are put forward. 结果表明山区资源丰富,但经济落后,主要原因是资源利用不尽合理,提出了适合山区特点的分层开发模式。
- LIANG Qi-chao's perplexity was in contact with the peculiarity that China absorbed Western culture in latter-day, and the principal cause was the limit of his mentalism history idea. 梁启超的困惑是与中国近代社会吸收西方文化的特点相联系的，而根本原因在于其唯心主义历史观的局限性。
- In fact, few economists think the Smoot-Hawley tariff (as it is most often known) was one of the principal causes of the Depression. 实际上，没有几个经济学家认为斯姆特-霍利关税法案是大萧条的主要原因。
- Slight punishment, ephemeral behavior and the deficiency of affiance management system are the principal causes of honesty deficiency. 而对失信行为惩罚不力、公司管理人短期行为、公司内部缺乏基本的信用管理制度是诚信缺失的最主要原因。
- Nearly half of the languages spoken in the world are considered endangered. One of the principal causes of this is the rise of English as a global language. 在世界上的语言中，几乎有一半被认为濒临消亡，其中最主要的原因之一英语日渐成为一门全球性的语言。
- A benign tumour will not cause you any fatal harm. 良性肿瘤不会对你有致命的伤害。
- My wages are the principal source of my income. 薪金是我收入的主要来源。
- The mid-depress of Pn was principally caused by non-stomatal limitation. 干旱胁迫加重了午间光合作用的光抑制。
