词汇	cases bottoms off
释义	cases bottoms off 🌏箱底脱落
随便看	transposition antigen transposition arm transposition arrangement transposition balance transposition balancing transposition behavior transposition block transposition blocks transposition board transposition bracket transposition by twisting transposition changeover box transposition change-over box transposition cipher transposition circuit transposition cleavage transposition cycle transposition element transposition error transposition facilities transposition limit transposition line transposition line 连续梁图解法 transposition line连续梁图解法 transposition mark