聊天常用英语口语第43期:昨晚我和她吵架了...

Harsh: cruel, severe and unkind 残酷的；严酷的；严厉的
The punishment was harsh and unfair.
处罚很重而且不公平。
The minister received some harsh criticism.
部长受到了严厉的批评。
the harsh treatment of slaves
对奴隶的虐待
He regretted his harsh words.
他对自己的刻薄言辞感到后悔。
We had to face up to the harsh realities of life sooner or later.
我们迟早都得正视生活的严酷现实。

Selfish: caring only about yourself rather than about other people 自私的
selfish behaviour/demands
自私的行为╱要求
Do you think I'm being selfish by not letting her go?
你觉得我不让她走是自私吗？
What a selfish thing to do!
这样做，多么自私！
It was selfish of him to leave all the work to you.
他把所有的工作都推给你，真是自私。

Understanding: showing sympathy for other people's problems and being willing to forgive them when they do sth wrong 善解人意的；富有同情心的；体谅人的
She has very understanding parents.
她的父母对她非常宽容。

Trivial: not important or serious; not worth considering 不重要的；琐碎的；微不足道的 
a trivial detail/matter/problem
细枝末节；琐碎小事；无关紧要的问题
I know it sounds trivial, but I'm worried about it.
我知道这事听起来微不足道，但我还是放心不下。
I'll try to fix it ─ but it's not trivial(= it may be difficult to fix).
我要设法修好，不过也不是轻易就能修好的。