设随机变量X服从参数为λ的泊松分布，且E[(X-1)(X-2)]=1，则λ=_____

A. 逗号前后两个分句考查因果连接，前句是结果，后句是原因，可用as进行连接,也可以处理为定语从句，还可以处理为and 连接的并列成分。
B. 前句主语是“人们”属于泛指类，采用it 作形式主语的被动翻译比较好，即：It was considered that ... ;后句“只有厨艺出众者”可以理解为“只有掌握了出众厨艺的那些人”，采用定语从句翻译，即：only those who mastered outstanding cooking skills。
C. “这份工作”是指“在皇宫做饭”即：a position，补充说明其前面真正的主语：to prepare meals in the palace，其余内容处理为省略关系词that 的定语从句，修饰a position，按照顺序翻译即可。
D. It was considered as an absolute honor / a great honor to prepare meals in the palace, as only those who mastered outstanding cooking skills were adequate for the position.或者：It was considered as an absolute honor / a great honor to prepare meals in the palace, a position only those who mastered outstanding cooking skills were adequate for.或者：People thought that cooking in the royal palace was a great honor, and only those who excelled in cooking could get this job.

A. 本句结构稍微复杂些，最简单的处理办法是翻译成用and连接的两个并列分句，即：Each given name contains one or two Chinese characters and it often reflects the parents’ expectations of the child。
B. 其实通过观察两个逗号隔开的小短句得知，是同一个主语发出两个动作，所以可以将一个处理为主句的谓语动词the given name contains one or two Chinese characters，另一个处理为doing/done的非谓语分句carrying the parents' wishes for / to their children或者处理为which引导的非限定性定语从句，即：which usually embodies the parents' wishes for / to their children 。
C. “父母对孩子的愿望”可以翻译为：parents’ wishes for / to their children 或者parents’expectations of the children
D. Generally speaking, each given name contains one or two Chinese characters and it often reflects the parents’ expectations of the child.或者：Generally speaking, a given name contains one or two Chinese characters, usually carrying the parents' wishes for their children.或者：Generally speaking, a given name contains one or two Chinese characters, which usually embodies the parents' wishes for / to their children.