a blot on the escutcheon something that tarnishes your reputation.
☞ An escutcheon was a family's heraldic shield, and so also a record and symbol of its honour.
英语词组固定搭配大全包含15956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。