It's ironic that she became a teacher—she used to hate school.是什么意思？

It's ironic that she became a teacher—she used to hate school.

令人啼笑皆非的是她成了教师—她过去一向厌恶上学。

ironic

adj. 用反语的，具有讽刺意味的，冷嘲的，令人啼笑皆非的；

例句
The film is more of an ironic fantasy than a horror story.
这部影片与其说是恐怖片，不如说是带有讽刺意味的奇幻片。

that

det. 那个，那；pron. 那个，那；conj. 多么，如此…以至，用于某些动词、形容词和名词后，引出各种从句；adv. 不那么，那样；

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

she

pron. 她，它；

例句
Her lover walked out on her after she had aborted their child.
她的情人在她打掉胎儿后甩了她。

became

v. 变为，成为（ become的过去式 ）；

例句
It became very clear that the incident was not just an aberration, it was not just a single incident.
事实已经很清楚，这件事不是偶发的，它并不是一起孤立的事件。

used

adj. 用过的，习惯于，二手的，旧的；v. 使用（ use的过去式和过去分词），常常，经常；

例句
The gym can be used by both able-bodied and disabled people.
这家健身房健全和残障人士都可使用。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

hate

vt. 仇恨，憎恨，厌恶，对…感到不喜欢或讨

例句
I hate to be the bearer of bad news.
我讨厌告诉别人坏消息。

school

n. 学校，上学，学院，群；vt. 训练，锻炼，教育，教导，约束，给…上学；

例句
I was terrible at school and left with few academic qualifications...
我的学习成绩一塌糊涂，离校时几乎没有学历。