adj.庸俗的,下流的;
英文例句/中文翻译:
The novel is full of four-letter words.
那本小说里脏话连篇。
The boy used four-letter words in his composition.
这个男孩在作文中使用了脏话。
He always uses so many four-letter words.
他总是用许多低俗的字眼。