She tried to forget that sometimes she heard them quarrelling.是什么意思？

She tried to forget that sometimes she heard them quarrelling.

她尽量不把有时听到他们争吵的事放在心上。

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。

tried

adj. 可靠地，经过考验的；v. 试图，努力( try的过去式和过去分词)，考验，磨炼，审讯；

例句
He was tried in absentia and sentenced to seven years in prison.
他被缺席判处七年监禁。

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。

forget

vt. 忘记，忘却，忽略，疏忽，遗落，忘掉；vi. 忘记，忽视；

例句
People suffering from amnesia don't forget their general knowledge of objects.
患健忘症的人不会忘记关于物体的一些基本知识。

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

sometimes

adv. 有时，间或，时

例句
I want to work at home on a Tuesday but as it turns out sometimes it's a Wednesday or a Thursday.
我想周二在家工作，但实际上有时却是周三或是周四。

heard

v. 听到，听见( hear的过去式和过去分词 )，听说，得知，听取；

例句
He acted as if he hadn't heard any of it...
他表现得好像对此毫不知情。

them

pron. 他们，她们，它们；

例句
I take care of them to the best of my abilities...
我尽我所能地照顾他们。

quarrelling

吵架(quarrel的现在进行式)，争论；

例句
I am sick of all the quarrelling among politicians who should be concentrating on vital issues.
我厌恶政客间的所有那些争吵，他们本应把注意力集中在重大问题上。