Definition
To accept the loss of something valued or the failure to achieve a desired outcome; to relinquish hope for something.
向…告別；放棄…；對…數先
Since the company announced the restructuring, many employees had to wave goodbye to their old positions.
自從公司宣布重組，許多員工不得不向他們的舊職位說再見。
If he doesn't change his habit of being late, he can wave goodbye to any chance of promotion.
如果他不改掉遲到的習慣，他就只能向任何升職的機會說再見了。
With the emergence of new technologies, we may have to wave goodbye to some old methods.
隨著新技術的出現，我們可能不得不向一些舊方法說再見。