Harper was a teacher by profession...是什么意思？

Harper was a teacher by profession...

哈珀的职业是教师。

harper

n. 弹竖琴者，竖琴师；

例句
When Colonel Harper found out, he would go ape.
哈珀上校发现了一定会勃然大怒。

was

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去式 ），在，存在，不受干扰；

例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

teacher

n. 教师，教员，老师，先生，[航]教练机；

例句
He was now a teacher and a respectable member of the community.
他现在是一位教师，并且是社区内受人尊敬的一员。

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

profession

n. 职业，专业，同行，宣称，信念，信仰；

例句
The profession offers a bundle of benefits, not least of which is extensive training.
这份职业提供了大量福利，全面训练就是其中很重要的一项。