pull the rug out (from under someone)
to suddenly take away important support from someone:
The school pulled the rug out from under the city soccer league when they asked them to pay for using their field.
英语词典包含110679条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。