be bound up with/in sth.

　　 与某事密切相关/忙于某事

　　①If you can't get on well with your classmates, it's bound to affect your study.

　　如果你和同学们相处不好，这肯定会影响你的学习。

　　②We are_bound_to_do what we can to help the disabled.

　　我们有义务尽力帮助残疾人。

　　③Henry's problems are_bound_up_with his mother's death when he was ten.

　　亨利的问题与他10岁时母亲就去世了有关系。

　　(2)adj.正旅行去......的；准备到......的

　　④He missed the express train (that/which was) bound for Shanghai.

　　他错过了那辆开往上海的快车。

　　2．junior

　　[教材原句]　In 1942 he joined the staff of the Philadelphia Navy Yard as a junior chemist and worked there for three years.

　　1942年他成为费城海军造船厂的一名初级化学师，并在那里工作了三年。

　　(1)adj.较年幼的；地位较低的

　　①He held a junior position in the company.

　　他在这家公司担任低级职务。

　　junior to sb.

　　比某人小；比某人的地位(级别或职位)低

　　②He is three years junior to me.

　　＝ He is_junior_to me by three years.

　　他比我小三岁。

　　(2)n.年少者；晚辈；等级、地位较低者

　　③Of the two officers, James is the junior.

　　在两位官员中，詹姆斯是年龄较小的那位。

　　be ... years one's junior

　　＝be one's junior by ... years

　　＝ be junior to sb. by ... years比某人小......岁

　　④She is four years my junior.

　　＝ She is my junior by four years.

　　＝ She is junior to me by_four_years.

她比我小四岁。