pledging

动词 pledge:

1. promise solemnly and formally
   同义词：pledge, plight
2. pay (an amount of money) as a contribution to a charity or service, especially at regular intervals
   同义词：pledge, subscribe
3. propose a toast to
   同义词：toast, drink, pledge, salute, wassail
4. give as a guarantee
   同义词：pledge
5. bind or secure by a pledge
   同义词：pledge