21

21 基本解释

twenty-one; 【电影】决胜21点

21 词组短语

• trisomy 21
• prednisolone 21-diethylaminoacetate
• prednisolone 21-stearoylglycolate
• prednisolone 21-trimethylacetate
• prednisolone sodium 21-m-sulfobenzoate
• prednylidene 21-diethylaminoacetate
• atomic number 21
• June 21

21 英英释义

noun

1. the cardinal number that is the sum of twenty and one

   Synonym:    twenty-oneXXI

adj

1. being one more than twenty

   Synonym:    twenty-onexxi