a house of cards an insecure or over-ambitious scheme.
☞ Literally, a house of cards is a structure of playing cards balanced together.
2013Mac Observer Eventually, the market share of cheap Android devices collapses like a house of cards.
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。