来由用英语怎么说？

来由

例句

• All bread is not baked in one oven. 人与人不同,花有几样红/不能强求一致。意译：并非所有面包都出自同一个烤炉。——潜台词：各个人的成长环境互不相同；每件事情都有不同的来由，………
• In the last three decades optics has been revitalized by several important discoveries. 近三十年来由于一些重要发现,光学重新活跃起来了.
• They have been reluctant to admit AIDS patients, in part because of unfounded fears of contagion. 他们一直不愿接纳艾滋病患者，部分原因是无来由地害怕被接触传染。
• The onus of proof is reversed in libel actions and placed firmly on the defender. 在诽谤诉讼中，举证责任反过来由辩方全权承担。
• Don't worry, Uncle Tim, your future is safe in our hands. 别担心，蒂姆大叔，你将来由我们照顾。
• They have been reluctant to admit AIDS patients, in part because of unfounded fears of contagion... 他们一直不愿接纳艾滋病患者，部分原因是无来由地害怕被接触传染。