good-bye

int.

1. 再見！
   "Good-bye, dear," she said.

   "再見，親愛的，"她說。

n.

1. 告辭；告別[U][C]
   I must say good-bye now.

   我現在得告辭了。

   If you lend him money, you can kiss it good-bye.

   如果你借給他錢，你就甭想他還你。