Business entertainment seems a natural extension of Japan's gift-giving culture.生意上的宴请招待似乎是由日本的送礼文化自然发展而来的。Everybody in the office stumped up a few pounds for his leaving present.办公室里的所有人都掏出几英镑给他买欢送礼。I don't think you can give your professor a gift without being considered a suck-up.我觉得你给教授送礼很难不会被认为是拍马屁。