a subject which someone would prefer not to talk about because it makes them angry or embarrassed.
I tried not to make any reference to Mike's drinking habits - I know it's a sore point with Kay at the moment. (often + with)
英语词组固定搭配大全包含18674条英汉双解词组,基本涵盖了全部常用英文词组、短语的翻译及用法,是英语学习的有利工具。