complimentary

英 [k?mpl?'ment(?)r?] 美[,kɑmpl?'m?ntri]
  • adj. 贈(zèng)送的；稱贊的；問候的

英英釋意

1. conveying or resembling a compliment;
"a complimentary remark"
2. costing nothing;
"complimentary tickets"