复数
the cardinal number that is the sum of sixteen and one
同义词:17 / XVII
being one more than sixteen
同义词:17 / xvii
词根:seven
adj.
seven七的;七个的
seventeenth第十七的,第十七个的;十七分之一的
n.
seven七个,七
seventeenth第十七日;十七分之一
num.
seventeenth第十七