妈妈好丑用英文翻译为：Mom is so ugly。

ugly：

adj.丑陋的;难看的;令人不快的;危险的;险恶的;凶险的；

比较级： uglier最高级： ugliest

派生词： ugliness n.

An ugly shopping centre stands across from one of the few buildings with character.

一座难看的购物中心对面，耸立着为数不多的几幢别具特色的大楼之一。

I thought they were laughing at me because I was ugly.

我觉得他们嘲笑我是因为我长得丑。

There was a problem which reared its ugly head about a week after she moved back in.

她搬回来大约一周之后，一个问题又重新出现了。