Definition of "pair" []

• Two corresponding persons or items, similar in form or function and matched or associated: a pair of shoes. (noun)
• One object composed of two joined, similar parts that are dependent upon each other: a pair of pliers. (noun)
• Two persons who are married, engaged, or dating. (noun)
• Two persons who have something in common and are considered together: a pair of hunters. (noun)
• Two mated animals. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The horrid truth now flashed upon me -- each pair of sparkling points was a _pair of eyes_!"
• "T2 second; pair (): first (T1 ()), second (T2 ()) {} pair (const T1& x, const T2& y): first (x), second (y) {} template pair (const pair& p): first (p. first), second (p. second) {}} 即map中，key是键值对的第一个元素且mapped value是第二个元素。 pair的定义可以在 pairstd:: make_pair (const T1& t1, const T2& t2) {return pair"
• "The main pair from the above novel cameo in the second, as Stirling provides an excellent update on the inhabited and livable solar system planetary romance, first Venus, then Mars."