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- The interior and exterior causes were analysed. finally the all-sided use of coal gangue and the exploiture of new technology without any pollution are discussed and expected. 分析了污染产生的内部和外部原因，并对无污染的煤矸石综合利用和新技术开发进行了探讨和展望。
- Reasonless economic activities of human beings, such as over-reclamation, overgrazing, denudation, misuse and gouging, trigger and accelerate land desertification, which are only the exterior causes of land desertification. 摘要人类不合理的经济活动，如滥垦、滥牧、滥采、滥伐、滥用等触发并加速了土地荒漠化的进程，但这只是制约土地荒漠化的外在机制。
- The exterior of the building is very unattractive. 这建筑物的外观很不起眼。
- We are painting the exterior wall of the house. 我们正在给房子的外墙涂漆。
- A benign tumour will not cause you any fatal harm. 良性肿瘤不会对你有致命的伤害。
- It is difficult to judge a person by his exterior. 依据外表难以评判一个人。
- The seed has a hard exterior covering. 这种子外壳很硬。
- It's certain that every effect must have a cause. 无疑，每个结果必定有其原因。
- The earthquake may cause a region to fall in. 地震可以使一个地区下陷。
- Inequalities in wealth cause social unrest. 贫富不均可造成社会动荡。
- Unhappiness is the root cause of his illness. 不开心是他生病的根源。
- A swine over fat is the cause of his own bane. 猪因壮死（象以齿焚）。
- Don't complain without good cause. 没有充分的理由就不要抱怨。
- "Nothing happens without a cause" is a generality. “凡事必有因”是一个通则。
- You have no cause for complaint. 你没有理由抱怨。
- The belief in god cause people to do good. 对上帝的信仰使人行善。
- She maintained a calm exterior, though really she was furious. 在外表上她保持着平静，但实际上她生气极了。
- The sway of the pail cause some milk to spill out. 桶的摇晃使一些牛奶溢了出来。
- Birds cause damage when they fly into engines. 鸟儿如果冲撞到引擎上就会造成损坏。
- Beneath his gruff exterior he's really very kind-hearted. 他外表粗鲁，心地却十分善良。
