一双: a couple; a pair; duad; brac ...一对: duad; twain; a pair; a coupl ...一对，一双: pair一对,一双；几个: a couple of一双，一对，一副: a pair of一双: a couple; a pair; duad; braces; twain 一双鞋 a pair of shoes; 一双钉鞋 spike一对: duad; twain; a pair; a couple; a brace 一对新婚夫妻 a newly-married couple成对,一双: pair一副；一双: pair一双，一副: a pair of一双手: a hand一双鞋: a pair of shoes一对一对应: ondestructive cursor第一对: head couple夫妇；一对: couple夫妻,一对: couple一对，连接: couple一对，一副: pair一对多: one-to-many一对谷: ichikidani一对梨: pair of pears一对一: counterparts; monogamy; one on one; one-for-one; one-level subroutine; oneone; one-to-one（耐克） 鞋一双: nike第一双打: first pair第一双尖牙: first bicuspid
